taxonID	type	description	language	source
676CB04DFF96FFFDFF32F95DFF5B36C1.taxon	diagnosis	Diagnosis. Eyes present, with dark visual elements. Pleon with 3 – 5 pleonites and small pleotelson. Maxilliped unfused medially, with coxae. Epignath kidney-shaped. Pereopods lacking ischium. Pereopods 4 – 6 with claw, formed from fused dactylus and terminal spine, bearing lateral rows of spinous setae. Three pairs of pleopods at most. Uropods uniramous. Sexual dimorphism primarily affecting antennae and cheliped. Females with only one pair of sac-like oostegites, arising from coxae of pereopod 4.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF96FFFDFF32FAA7FE763727.taxon	diagnosis	Diagnosis (after Poore et al. 2002). Body cylindrical in cross-section. Antennule uniramous with three to five articles. Antenna with six to eight articles. Mandibles without palp. Maxillule with one endite and with palp of one article. Maxilla reduced to an oval lobe. Epignath reniform or falciform. Cheliped lacking coxa. Pereopods ambulatory or clinging. Pleopods, when present, with exopod and endopod each of one article.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF97FFFCFF32FB7DFFB1376A.taxon	diagnosis	Diagnosis. Four pleonites present plus pleotelson. Pleonites 1 and 2 carrying a transverse dorsal row of plumose setae. Antennule with four articles, first article at least 2.5 times length of second article, terminal article with four to seven aesthetascs. Antenna with seven articles, article 2 longer than wide, last two articles small. Maxillule endite with eight large terminal spiniform setae, palp with several long setae. Labium outer lobe with rounded terminal process. Pereopod 1 coxa without anterior bulge. Pleopod basis with one or two plumose setae on inner margin and seven to twelve on outer margin, endopod inner margin with seven to twelve plumose setae. Uropod with three or four articles, terminal article normal. Sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF97FFF2FF32F995FAC4337F.taxon	description	(Figs 1 – 3)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF97FFF2FF32F995FAC4337F.taxon	materials_examined	Material examined. Four males, two females (one ovigerous), five juveniles, (one male, two females, three juveniles deposited NMV J 56621), Bicton, Swan Estuary, WA (3202 ’ S 115 ° 45 ’ E), 1 m depth, Cystoseira trinodis washings, 10 Jan 1994.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF97FFF2FF32F995FAC4337F.taxon	diagnosis	Diagnosis. With characters of genus. Antennule article 1 about 2.5 (female) and 3.5 (male) times longer than wide, terminal article with five to seven aesthetascs; left mandible lacinia mobilis broad and tooth-like with serrated margin; right mandible lacinia mobilis peg-like; pereopod coxa with two setae, lacking pronounced anterior bulge; pleopod basal article with seven to eleven setae on outer margin, two setae on inner margin, endopod with ten to twelve setae on inner margin; uropod with three articles.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF97FFF2FF32F995FAC4337F.taxon	description	Description. FEMALE. Body (Fig. 1). Observed length to 5.0 mm; preserved specimens with mottled pigmentation extending from cephalothorax to pleotelson and on chelipeds, antennae, antennules; pigmentation on faded specimens most prominent on cephalothorax and posterior dorsal margin of pereonites. Cephalothorax rounded and narrowing anteriorly in dorsal view, length slightly longer than width, approximately one-fifth body length. Pereon occupies about 58 % of total length; pereonites with simple setae on anterio-dorsal and lateral margins; pereonite 1 length about one-quarter width; pereonites 2 – 6 similar, twice length of pereonite 1. Pleonites together one-fifth as long as body; pleonites 1 and 2 of similar length, with prominent row of plumose setae extending transversely around lateral margin to near midline; pleonite 3 similar length to pleonite 2, with lateral group of three to four large setae; pleonite 4 two-fifths length of pleonite 3, with lateral group of two to five setae; pleonite 5 absent. Pleotelson about length of pleonites 3 and 4 together; posterior margin with two central pairs of setae, two to four long setae plus pappose seta anterior to articulation with uropod, one long seta anterio-laterally. Antennule (Fig. 1). Article 1 about 2.5 times longer than wide, with three small pappose setae two-fifth distance along outer margin and about four simple setae and four pappose setae distally; article 2 about onethird length of article 1, with about nine setae distally; article 3 about three-quarters length of article 2, with about three setae distally; article 4 greatly reduced and cap-shaped, with about seven long simple setae and five aesthetascs. Antenna (Fig. 1). Article 1 as long as wide, lacking setae; article 2 1.5 times length of article 1, with one small seta on outer margin and three setae distally; article 3 half length of article 2, with a single distal seta; article 4 twice length of article 3, with two simple setae and pappose seta distally; article 5 three-quarters length of article 4, with about six simple and pappose setae distally; article 6 length similar to width, with several long setae; seventh article reduced to small terminal cap with numerous long setae. Mouthparts (Fig. 2). Labrum carpeted by setae. Left mandible lacinia mobilis tooth-like, with an undulating outer margin and strong denticulate seta at base, pars incisiva smooth and acute, pars molaris broad and corrugated; right mandible lacinia mobilis peglike, with denticulate seta at base, pars incisiva smooth and acute, pars molaris broad and corrugated. Labium with inner and outer lobes covered by fine setules near distal margins, outer lobe with small rounded terminal process and with very fine spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae and cluster of fine terminal setules; palp with two very long and four long pappose setae. Maxilliped coxa and basis not joined medially; coxa with proximo-medial seta and a single large seta medio-distally; basis with two to four long spiniform setae on lateral margin, single seta proximo-medially, three or four very long setae near articulation with palp; endite setulose around distal margin, two small spiniform setae medio-distally and two large circumplumose setae distally; palp with four articles, article 1 as long as wide, article 2 triangular, slightly longer than article 1 with single seta distal on outer margin, three or four long setae extending distally in a row from midway along inner margin and two long setae distally, article 3 slightly smaller than article 2 and fringed with row of about nine very long setae along inner margin, article 4 similar in length to article 3 but two-thirds width, with a long seta two-third distance along outer margin, two long terminal seta, and two parallel rows of about five setae distally on inner margin. Epignath with terminal circumplumose seta and fringed by fine setules. Cheliped (Fig. 1). Basis longer than wide with two or three setae distally near ventral margin; merus triangular with two to four setae two-thirds distance along ventral margin; carpus similar in length to basis, longer than wide, with two to three setae distal on ventral margin, three to four setae distal adjacent to articulation with propodus, and two to four distal dorsal setae; propodus similar in length to carpus, length twice width, with large terminal spiniform seta, four setae midway along ventral margin, about eight setae along dorsal margin of fixed finger and group of three or four simple setae plus a large pappose seta near articulation with dactylus; dactylus ventral margin sinusoidal with row of very short setae, unguis short and solid, about onefifth total length of dactylus. Pereopod 1 (Fig. 3). Coxa with two setae, lacking pronounced anterior bulge; basis width slightly less than one-third length; merus about one-third length of basis; carpus 1.5 times length of merus; propodus slightly less than length of merus and carpus together, with six setae near distal ventral margin and two setae near distal dorsal margin; unguis half length of dactylus. Pereopods 2 and 3 (Fig. 3). Similar; basis width slightly over one-third length, length similar to merus, carpus and propodus together; merus one-third length of basis, with two short spiniform setae ventro-distally; carpus two-thirds length of merus, two parallel series of four and six serrated spiniform setae along distal margin with dorsal spine largest; propodus 1.5 times length of carpus, with plumose seta and three long simple distal setae; unguis one-third length of dactylus. Pereopods 4 and 5 (Fig. 3). Similar; basis width about two-fifths length; merus with two or three spiniform setae two-fifths way along ventral margin; carpus with parallel rows of four or five serrated spiniform setae around distal margin; propodus 1.5 times length of merus, with one simple seta near distal ventral margin, one simple seta medio-distally, and pappose seta plus two long denticulate setae near distal dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of about six flattened setae on the two sides. Pereopod 6 (Fig. 3). Basis width slightly over one-third length, length similar to merus, carpus and propodus together; merus with three spiniform setae three-quarters way along ventral margin; carpus with parallel rows of three and five spiniform setae around distal margin; propodus with distal comb-like row of six or seven flattened denticulate setae and dorso-distal group of about four longer denticulate setae and two very long simple setae; dactylus with lateral comb-like rows of about eight flattened setae. Pleopods 1 – 3 (Fig. 3). Similar; basal article with seven to eleven plumose setae along outer margin and two plumose setae on inner margin; exopod with numerous plumose setae along outer margin; endopod with ten to twelve plumose setae along inner margin, short terminal circumplumose seta and numerous plumose setae along outer margin. Uropod (Fig. 3). Three articles, basal article length slightly greater than twice width with four to six distal setae, article 2 slightly longer and narrower than basal article with six to eight simple and 2 pappose setae distally, article 3 slightly longer than half length of article 2, with numerous long terminal setae including pappose seta. MALE. Similar to female, other than Body (Fig. 1). Cephalothorax about 23 % of body length. Pereon about 47 % of total length; pereonite 1 length about one-fifth width; pereonites 2 and 3 similar, twice length of pereonite 1; pereonites 4 and 5 similar, slightly longer than pereonite 3; pereonite 6 about fourfifths length of pereonite 5. Antennule (Fig. 1). Article 1 about 3.5 times longer than wide. Antenna (Fig. 1). Article 2 twice length of article 1; article 3 one-third length of article 2; article 4 three times length of article 3. Cheliped (Fig. 1). Basis as long as wide; carpus similar in length to basis, as long as wide; propodus longer than carpus; dactylus ventral margin crescent-shaped, unguis about one eighth total length of dactylus.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF97FFF2FF32F995FAC4337F.taxon	distribution	Distribution. Swan Estuary, WA, 0 – 2 m depth; Tanais dulongii: Europe, eastern United States (Sieg, 1980 b).	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF97FFF2FF32F995FAC4337F.taxon	discussion	Remarks. Specimens collected in the Swan estuary agree well with diagnoses and figures of Tanais dulongii by Sieg (1980 b), who lists a very extensive synonymy for this species, including Tanais cavolinii. Nevertheless, because type material of T. dulongii was not examined in the current study, and also because of uncertainty associated with the possible existence of cryptic species similar in appearance to T. dulongii (Graham Bird, pers. comm.), this taxon is here conservatively regarded as Tanais cf. dulongii. Tanais dulongii occurs widely and abundantly in Europe and North America (Sieg, 1980 b). Bamber (2005) suggested that specimens of T. dulongii previously reported from the Swan estuary by Sieg (1980 b) may comprise Tanais pongo, a recently described species from the Esperance region of southwestern Western Australia. However, that species clearly differs from Swan estuary specimens in a number of characteristics, including five compared to three uropod articles and much greater reduction of mandible lacinia mobilis. Tanais cf. dulongii is likely a non-indigenous species that has been translocated to Australia by shipping. If so, it has apparently been established in the Swan estuary since at least 1943, when T. dulongii (as T. cavolinii) was reported as common and widespread in the estuary (Thomson 1946). Poore et al. (2002) report T. dulongii to 200 m depth in Victoria, SA and WA; however, these records could not be confirmed and are unlikely to be correct.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFF2FF32FDB5FBBF35D9.taxon	diagnosis	Diagnosis. Five pleonites present plus pleotelson. Pleonites 1 and 2 carrying a transverse dorsal row of plumose setae. Antennule with four articles, first article three times length of second article, terminal article with eight aesthetascs. Antenna with seven articles, article 2 as long as wide, last two articles small. Maxillule endite with eight large terminal spiniform setae, palp with several long setae. Labium outer lobe with terminal process. Pereopod 1 coxa without anterior bulge. Basis length of pereopods 2 and 3 about 2.5 times width. Pleopod basis with two to four plumose setae on inner margin and about 16 on outer margin, endopod inner margin with about 18 plumose setae. Uropod with four articles, terminal article normal. Sexes similar.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFF2FF32FDB5FBBF35D9.taxon	discussion	Remarks. Austrotanais is a monotypic genus, readily recognisable amongst Tanaidae by the combination of five free pleonites, lack of sexual dimorphism, relatively wide basis of pereopods 2 and 3, and a dense fringe of setae crossing the dorsal surface of pleonites 1 and 2. The latter feature is shared with Tanais in Australia; however that genus possesses four free pleonites. mology. Named in reference to the southern (austral) Australian distribution of the known species of this genus.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFE9FF32FACDF92D35A7.taxon	description	(Figs 4 – 6)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFE9FF32FACDF92D35A7.taxon	materials_examined	Material examined. Holotype. Ovigerous female (NMV J 56133), 8.0 mm, Governor Island, Bicheno, Tasmania (41 ° 53 ’ S 148 ° 17 ’ E), 10 m depth, kelp (Lessonia corrugata) holdfast, 20 May 1993. Paratypes. 8 juveniles (NMV J 56134), holotype location. Other material. Male, Rottnest Island, WA (32 ° 01 ’ S 115 ° 33 ’ E), 1 m depth, macroalgal washings, 21 Jan 1996.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFE9FF32FACDF92D35A7.taxon	diagnosis	Diagnosis. With characters of genus. Antennule article 1 about twice as long as wide; left mandible with lacinia mobilis greatly reduced and peg-like; right mandible with lacinia mobilis reduced to large thorn; pereopod coxa with two setae but lacking pronounced anterior bulge.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFE9FF32FACDF92D35A7.taxon	description	Description. FEMALE Body (Fig. 4). Large, body length to 8.5 mm; preserved specimens with red-brown mottled pigmentation extending most prominently on cephalothorax, pereonites 2 – 6, pleonite 3 – 5 and pleotelson. Cephalothorax rounded and narrowing anteriorly in dorsal view, length slightly less than width, one-fifth body length. Pereon occupies about half total length; pereonites with setae on anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonites 2 and 3 similar, almost twice length of pereonite 1; pereonites 4 - 6 similar, about 1.3 length of pereonite 3. Pleonites together about one-fifth of body length; pleonites 1 and 2 similar, with dense row of setae extending prominently around lateral and dorsal surfaces; pleonite 3 half length of pleonite 2; pleonites 4 and 5 with similar length to pleonite 3 but about 78 % width, with lateral and dorsal simple setae. Pleotelson about length of pleonites 4 and 5 together; posterior margin with medial projection, surmounted by pair of short setae central between pair of longer setae, single long seta with several small associated setae dorso-lateral to medial projection. Antennule (Fig. 4). Article 1 about twice as long as wide, with three small pappose setae about one-third distance along margin, one or two large pappose setae and numerous long simple setae distally; article 2 about one-third length of article 1, with about eight setae distally; article 3 about three-quarters length of article 2, with prominent pappose seta distally; article 4 greatly reduced and cap-shaped, with numerous long setae and eight aesthetascs. Antenna (Fig. 4). Article 1 as long as wide, lacking setae; article 2 about 1.5 times length of article 1, as long as wide, with several distal setae; article 3 two-thirds length of article 2, with distal seta; article 4 1.5 times length of article 3, with about four long simple setae and pappose seta; article 5 slightly shorter than article 4, with about three simple setae and three pappose setae distally; article 6 length similar to width, with several long setae; seventh article reduced to small terminal cap with numerous long setae. Mouthparts (Fig. 5). Labrum carpeted by fine setae, particularly near distal margin. Left mandible with lacinia mobilis greatly reduced and peg-like, pars incisiva smooth and acute, pars molaris broad and corrugated; right mandible with lacinia mobilis reduced to large thorn with adjacent denticulate seta, pars incisiva smooth and acute, pars molaris broad and corrugated. Labium with inner and outer lobes covered by fine setae near distal margins, inner lobe extending past distal margin of outer lobe; outer lobe with small pointed terminal process and with very fine spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae and cluster of fine terminal setules on outer margin near base of spines; palp with about nine long terminal simple setae. Maxilliped coxa and basis not joined medially; basis with four or five long setae distally near articulation with palp and three or four long setae along distal outer margin; endite with setulose fringe, two small spiniform setae and two simple setae about twice length of adjacent spiniform setae in medio-distal corner; palp with four articles, article 1 as long as wide with fine setae distally on outer margin, article 2 similar length to article 1 with large denticulate seta distal on outer margin, two rows of about six very long setae extending distally from midway along inner margin, article 3 slightly shorter than article 2 and fringed with two rows of about seven long setae along inner margin, article 4 with similar length to article 3 and half width, with one or two long setae distally on outer margin, and two adjacent rows of about six setae distally on inner margin. Epignath fringed by fine setules and with terminal circumplumose seta. Cheliped (Fig. 4). Basis length similar to width, with two setae on lateral surface and about three small setae near distal ventral margin; merus triangular with about four setae three-quarters distance along ventral margin and two long setae lateral; carpus similar in length to basis, with about ten distal ventral setae, six distal dorsal setae, and single small seta midway along dorsal margin; propodus similar in length to carpus, with large terminal spiniform seta, five or six setae midway along ventral margin, about eleven setae along dorsal margin of fixed finger and four setae near articulation with dactylus; dactylus with row of very short setae along ventral margin, unguis short and solid, about one sixth total length of dactylus. Pereopod 1 (Fig. 6). Coxa with two slight ventral spurs and two setae; basis length about four times width; merus about one-quarter length of basis; carpus about 1.4 length of merus; propodus length of merus and carpus together, with row of about nine setae near distal ventral margin, pappose seta and simple seta three-quarters distance along dorsal margin; unguis half length of dactylus. Pereopods 2 and 3 (Fig. 6). Similar, basis length about 2.5 times width, slightly less than length of merus, carpus and propodus together; merus two-fifths length of basis, with two to four setae midway along ventral margin, two to four short spiniform setae and four simple setae ventro-distally, two simple setae dorso-distally; carpus length similar to merus, rows of about seven and eleven spiniform setae extending in increasing size either side of ventral margin with spine at dorso-distal corner largest; propodus slightly shorter than carpus and half width, two simple setae and long denticulate setae distally; unguis about one-third length of dactylus. Pereopods 4 and 5 (Fig. 6). Similar; basis length double width; merus with three or four ventro-distal spiniform setae; carpus with two rows of about seven spiniform setae adjacent to distal margin; propodus similar in length to carpus, three-quarters width, with two long simple setae and two or three pappose setae distally; unguis merged into claw-like dactylus, with lateral comb-like rows of about eight flattened setae. Pereopod 6 (Fig. 6). Basis length about 2.5 times width; merus with two to four spiniform setae threequarters distance along ventral margin; carpus with two adjacent rows of about eight spiniform setae; propodus with distal comb-like row of about 14 flattened denticulate setae and dorso-distal group of about eight longer denticulate setae and two very long simple setae; dactylus with lateral comb-like row of about eight flattened setae. Pleopods 1 – 3 (Fig. 6). Similar; basal article with about 16 long plumose setae along outer margin and two to four small plumose seta on inner margin; exopod with numerous long plumose setae along outer margin, very fine setae along inner margin; endopod with about 18 plumose setae along inner margin and numerous plumose setae along outer margin, terminal circumplumose seta with fine setae adjacent. Uropod (Fig. 6). Four articles; basal article length 1.2 times width, three setae two-thirds distance towards distal margin and about five long setae distally; article 2 slightly shorter than articles 2 and 3 together, distal setae shorter than setae on articles 2 and 3. MALE. Similar to female.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFE9FF32FACDF92D35A7.taxon	etymology	Etymology. Named after Sean Riley, in recognition to his contribution to marine conservation in Tasmania.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFE9FF32FACDF92D35A7.taxon	distribution	Distribution. Rottnest Island, WA, to eastern Tasmania. 1 – 10 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF99FFE9FF32FACDF92D35A7.taxon	discussion	Remarks. This tanaid occurs around the southern Australian coast in seaweed holdfasts. It is recognisable without dissection by the presence of five pleonites plus dorsal fringe of setae across pleonites 1 and 2, and the obvious contrast between the conspicuous red-brown stippling across most of the dorsal surface and paler shading of pereonite 1 and pleonites 1 and 2. In size, body coloration and general appearance, it resembles Tanais pongo of southwestern Australia (Bamber, 2005), but differs in characters of the genus, most notably including presence of pleonite 5 and uropod with four articles, and presence of four or five rather than one long distal setae on the maxilliped basis.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF82FFE9FF32FADDFA1637F9.taxon	diagnosis	Diagnosis. Four pleonites present plus pleotelson. Pleonites 1 and 2 carrying a lateral row of plumose setae that extends transversely onto the dorsal surface. Antennule with four articles, first article over 2.5 times length of second article, terminal article with two or three aesthetascs. Antenna with six articles, article 2 longer than wide, terminal article small. Maxillule palp with one or two long setae. Labium outer lobe lacking terminal process. Propodus with fixed finger flattened into anvil-shaped process. Pereopod 1 coxa without anterior bulge. Pleopod basis with one plumose seta on inner margin and about six setae on outer margin, endopod inner margin with one plumose seta. Uropod with four or five articles, terminal article normal. Sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF82FFEFFF32F92DFE0D3471.taxon	description	(Figs 7 – 9)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF82FFEFFF32F92DFE0D3471.taxon	materials_examined	Material examined. Holotype. Male (NMV J 56135), 2.4 mm, Cradoc, Huon estuary, Tas (43 ° 07.135 ' S 147 ° 00.697 ' E), 0.3 m depth, macrophyte washings, Coll. Neville Barrett, 5 Nov 1996. Paratype. One female (NMV J 56136), 2.3 mm, holotype location. Other material. Three males, four females (two ovigerous), holotype location.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF82FFEFFF32F92DFE0D3471.taxon	diagnosis	Diagnosis. With characters of genus. Antennule article 1 about 2.5 (female) and 3.5 (male) times as long as wide; left mandible with lacinia mobilis molar-like, broad and with undulating margin; right mandible with lacinia mobilis present as large bifurcated peg-like structure; cheliped propodus with anvil-shaped process on fixed finger that is wider than long and on males extends about half distance to dactylus articulation; dactylus length about twice basal width; pereopod coxa with two setae, lacking pronounced anterior bulge; uropod with four articles in mature animals.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF82FFEFFF32F92DFE0D3471.taxon	description	Description. FEMALE Body (Fig. 7). Small, observed body length to 2.3 mm; preserved specimens with mottled pigmentation on dorsal surface, most prominent towards anterior of cephalothorax, near posterior margin of pereonites and pleonites, and on chelipeds. Cephalothorax rounded and narrowing anteriorly in dorsal view, length similar to width and one quarter body length. Pereon occupies about 53 % of total length; pereonites with isolated setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonite 2 slightly longer than pereonite 1; pereonite 3 one and a half times length of pereonite 2; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 about four-fifths length of pereonite 5. Pleonites together one sixth as long as body; pleonites 1 and 2 similar, each with a prominent row of plumose setae extending transversely around lateral margin onto dorsal surface; pleonite 3 four-fifths length of pleonite 2; pleonite 4 two-thirds length of pleonite 3; pleonite 5 absent. Pleotelson about length of pleonites 3 and 4 together; posterior margin with pair of short setae central between pair of long setae, two long setae plus shorter pappose seta adjacent to articulation with uropod, one long seta anterio-laterally. Antennule (Fig. 7). Article 1 about 2.5 times longer than wide, with three pappose setae two-fifths distance along margin, three simple setae and three pappose setae distally; article 2 two-fifths length of article 1, with four or five simple setae and two or three pappose setae distally; article 3 about three-quarters length of article 2, with two to four setae distally; article 4 greatly reduced and cap-shaped, with numerous long setae and two or three aesthetascs. Antenna (Fig. 7). Article 1 as long as wide, lacking setae; article 2 slightly longer than wide, about 1.5 times length of article 1, with two or three setae distally; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with single simple and pappose setae distally; article 5 slightly shorter than article 4, more than twice as long as wide, with several pappose and simple setae distally; article 6 reduced to small terminal cap with numerous long setae. Mouthparts (Fig. 8). Labrum carpeted distally by fine setae. Left mandible with large digitate lacinia mobilis, pars incisiva broad and crenulated, pars molaris broad; right mandible with lacinia mobilis present as large bifurcated peg-like structure, pars incisiva smooth and acute, pars molaris broad. Labium with inner and outer lobes covered by fine setae near distal margins; outer lobe rounded, with fine spines on lateral margin, lacking terminal process. Maxillule endite with seven observed large terminal spiniform setae and cluster of fine setae on outer margin near base of spines; palp with two long setae. Maxilliped coxa and basis not joined medially; coxa with long proximo-medial seta and very fine spines on lateral margin; basis with a single long seta medio-distally; endite setose around distal margin, with small spiniform seta medial towards the distal margin and two large circumplumose setae and two simple setae distally; palp with four articles, first wider than long with distal seta and on outer margin and very fine lateral spines, article 2 slightly longer than article 1 with five long setae distally, article 3 similar in size to article 2 and fringed with about nine long setae along inner margin, article 4 similar in length to article 3 but half width, with a seta two-thirds distance along outer margin, two long terminal setae, and two adjacent rows of about four setae distally on inner margin. Epignath with relatively small terminal circumplumose seta and fringed by fine setules. Cheliped (Fig. 7). Basis longer than wide with single seta near each of ventrodistal and dorsodistal corners; merus triangular with a seta two-thirds distance along ventral margin; carpus 1.5 times length of basis, longer than wide, with a seta distal on ventral margin and two dorso-distal setae; propodus similar in length to carpus, fixed finger flattened into anvil-shaped process that is wider than long and extends about two-thirds distance from large terminal spiniform seta to dactylus articulation, single seta midway along ventral margin, six simple setae near terminal seta along dorsal margin of fixed finger and group of three setae plus a lateral seta near articulation with dactylus; dactylus length about 2.5 times basal width, with row of five or six short setae along ventral margin, projecting ventral spinous process near unguis, unguis short and solid, about onefifth total length of dactylus, with slightly bifurcated tip. Pereopod 1 (Fig. 9). Coxa barely produced anteriorly with a single seta; basis length approximately four times width; merus about one-third length of basis; carpus slightly longer than merus; propodus 1.5 times length of merus, with two distal setae; unguis one-third length of dactylus. Pereopods 2 and 3 (Fig. 9). Similar; basis width one-third length; merus two-fifths length of basis, with short spiniform seta and long simple setae ventro-distally; carpus two-thirds length of merus, parallel series of two and three serrated spiniform setae along distal margin; propodus 1.5 times length of carpus; unguis nearly half length of dactylus. Pereopods 4 and 5 (Fig. 9). Similar; basis width almost half length; merus with a pair of large ventro-distal spiniform setae; carpus with adjacent rows of two and three serrated spiniform setae along distal margin; propodus length similar to merus, with seta near distal ventral margin and pappose seta plus two or three long simple setae near distal dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of about twelve flattened setae on the two sides. Pereopod 6 (Fig. 9). Carpus with parallel rows of two and three spiniform setae around distal margin; propodus with distal comb-like row of about six flattened denticulate setae and dorso-distal pair of long denticulate setae and pappose seta; dactylus with lateral comb-like rows of about twelve setae. Pleopods 1 – 3 (Fig. 9). Similar; basal article with six plumose setae along outer margin and one plumose seta on inner margin; exopod with numerous plumose setae along outer margin; endopod with one plumose seta along inner margin, large terminal circumplumose seta and numerous plumose setae along outer margin. Uropod (Fig. 9). Four articles, basal article length 1.5 times width, three long setae distally, article 2 twothirds length of basis and lacking setae, article 3 twice length of article 2 with two long simple setae and two pappose setae, article 4 two-thirds length of article 3 with five long simple setae and a pappose seta. MALE. Similar to female, other than Body (Fig. 7). Cephalothorax pear-shaped, slightly longer than wide, with prominent concavity affecting anterior two-thirds of lateral margin. Pereon about 48 % of total length. Pleonites together one seventh as long as body. Antennule (Fig. 7). Article 1 about 3.5 times longer than wide. Antenna (Fig. 7). All articles more elongate than in female, article 2 twice as long as article 1. Cheliped (Fig. 7). All articles proportionately wider than in female; basis length similar to width; propodus with anvil-shaped process on fixed finger that is wider than long and extends about half distance from large terminal spiniform seta to dactylus articulation; dactylus length about twice basal width.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF82FFEFFF32F92DFE0D3471.taxon	etymology	Etymology. Named after Neville Barrett, collector of the type specimens, in recognition to his contribution to marine science and conservation in Tasmania.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF82FFEFFF32F92DFE0D3471.taxon	distribution	Distribution. Cradoc, Huon estuary, Tasmania, 0 – 1 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF82FFEFFF32F92DFE0D3471.taxon	discussion	Remarks. This species shares with the genera Sinelobus and Tanais a reduction of the pleon to four segments. It differs from Tanais and agrees with Sinelobus in possessing an anvil-shaped propodal fixed finger, relatively few antennule aesthetascs, antenna with six articles, maxillule palp with two long setae, and single plumose seta on endopod inner margin. Sinelobus was regarded by Sieg (1980 b) as monotypic, comprising a single cosmopolitan species Sinelobus stanfordi that encompassed five synonyms (Tanais philetaerus Stebbing, 1904, Tanais fluviatilis Giambiagi, 1923, Tanais sylviae Mello-Leitao, 1941, Tanais estuarius Pillai, 1954 and Tanais herminiae Mañé- Garzón, 1943); however, the expanded species diagnosis of Sieg (1980 b) encompasses much variation in morphology, and the taxon has been detected worldwide in a large range of habitat types. It seems unlikely that a single species could possess a native distribution that extends from the hypersaline marine lagoon at the type locality of Clipperton in the eastern Pacific, to tropical Australian estuaries, a brackish Galapagos crater, South African marine sponge beds, and a lake at 400 m altitude on Saint Helena (Gardiner 1975; Sieg 1980 b). No known transport vector between these locations exists, as should be evident if a single species had invaded all these locations. Clearly, ‘ Sinelobus stanfordi’ warrants further investigation given the likelihood that it comprises a species complex. Sinelobus barretti occurs at a much higher latitude other known Sinelobus taxa. It differs morphologically from descriptions of Sinelobus stanfordi in possessing a much shorter dactylus fixed finger on male, a transverse row of setae on pleonites 1 and 2 that barely extends onto the dorsal surface, paired spiniform setae located three-quarters distance along the medial margin of the maxilliped endite, and less elongate basal article of antennule (see Bird & Bamber 2000; Monod 1977; Shiino 1965; Sieg 1980 b). Sinelobus barretti most closely approaches Sinelobus ‘ stanfordi’ of Arcturus Lake, Galapagos, in form, but the male has a wider and more pear-shaped cephalothorax, and a cheliped with narrower propodus and much more elongate anvilshaped process on the fixed finger (Gardiner 1975). Sinelobus barretti may also differ from congeners in possessing seven rather than eight large terminal spines on the maxillule endite. Seven spines only were observed on microscopic preparations of appendages, although a smaller eighth spine may possibly have been obscured. Sinelobus barretti occurs abundantly amongst shoreline macrophytes at a single known location, where a salinity of 4 o / oo was measured. The species was collected during a broad-scale study of macrobenthos in 48 estuaries around Tasmania, but was misidentified in reporting as Sinelobus stanfordi (Edgar et al. 1999 a; Edgar et al. 1999 b). During that study, S. barretti was found to possess a particularly unusual distribution for Tasmanian estuarine animals. All other species with more than 10 individuals collected (184 taxa in total) were either marine or possessed wide distributions with known presence at multiple other sites. Given its highly localised known distribution, against a background of extensive macrobenthic surveys of Tasmanian estuaries, and the scale of impacts within its home estuary through land clearance and human settlement (Edgar et al. 1999 a), this species appears to qualify as a threatened species under Tasmanian legislation and the IUCN Red List guidelines (IUCN 2001). A threat assessment for this species should be undertaken.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF84FFEFFF32FAAFFA7037A7.taxon	diagnosis	Diagnosis. Five pleonites present plus pleotelson. Antennule with four articles, first article over 2.5 times length of second article, terminal article with five to eight aesthetascs. Antenna with six articles, article 2 much longer than wide. Maxillule endite with eight large terminal spiniform setae, palp with about five to eight long setae. Labium outer lobe with small terminal process. Pereopod 1 coxa without anterior bulge. Pleopod basis with one plumose seta on inner margin and five to seven setae on outer margin, endopod inner margin with one or two plumose setae. Uropod with four articles, terminal article normal. Pronounced sexual dimorphism.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF84FFE5FF32F8DFFA64304F.taxon	description	(Figs 10 – 12)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF84FFE5FF32F8DFFA64304F.taxon	materials_examined	Material examined. One male (QM W 25442), one female (QM W 25443), Mon Repos Beach (23.28 ° S 151.53 ° E), Qld, attached to test of nesting turtle (Caretta caretta), Coll. C. Limpus et al., 12 Nov 1977.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF84FFE5FF32F8DFFA64304F.taxon	description	Description. FEMALE Body. Observed length to 4.7 mm. Cephalothorax rounded and narrowing anteriorly in dorsal view, length similar to width and about 28 % of body length. Pereon occupies about half of total length; pereonites with isolated setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonite 2 1.5 times length of pereonite 1; pereonite 3 1.5 times length of pereonite 2; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 about four-fifths length of pereonite 5. Pleonites together one seventh as long as body; pleonites 1, 2 and 3 with plumose setae on lateral margins, pleonite 1 length about five times width, pleonite 2 slightly shorter than pleonite 1; pleonite 3 three-quarters length of pleonite 2; pleonite 4 and 5 similar, half length of pleonite 3, with simple lateral setae. Pleotelson about length of pleonites 4 and 5 together; posterior margin with pair of long setae central between pair of short setae, two long plus two or three short setae adjacent to articulation with uropod. Antennule (Fig. 10). Article 1 about three times longer than wide, with three pappose setae two-fifths distance along margin, several simple and pappose setae distally; article 2 two-fifths length of article 1, with numerous simple setae and pappose seta distally; article 3 about three-quarters length of article 2, with three or four setae distally; article 4 greatly reduced and cap-shaped, with numerous long setae and about six aesthetascs. Antenna (Fig. 10). Article 1 as long as wide, lacking setae; article 2 length twice width, about twice length of article 1, with single proximal and single distal setae; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with several long simple setae distally; article 5 three-quarters length of article 4, about twice as long as wide, with several pappose and simple setae distally; article 6 reduced to small terminal cap with numerous long setae. Mouthparts (Fig. 11). Labrum distally carpeted by fine setules. Left mandible with large digitate lacinia mobilis, large denticulate seta at base, pars incisiva roundly bifurcated at tip, pars molaris broad and corrugated; right mandible with lacinia mobilis present as peg-like structure, spiniform seta at base, pars incisiva broad and pointed at tip, pars molaris broad and corrugated. Labium with inner and outer lobes covered by fine setae near distal margins; outer lobe rounded with rounded terminal process. Maxillule endite with eight large terminal spiniform setae and cluster of fine setules on outer margin near base of spines; palp with five very long setae. Maxilliped coxa and basis not joined medially; coxa with three long proximo-medial setae; basis with two long distal setae near attachment of palp; endite finely setulose around distal margin, with three spiniform setae on distal margin and two longer circumplumose setae medio-distally; palp with four articles, first as long as wide with two small setae on outer margin, article 2 longer than article 1 with about five long distal setae on inner margin and single seta distal on outer margin, article 3 similar in length to article 2, length about twice width, fringed with two rows of about six long setae along inner margin, article 4 shorter than article 3 and half width, with a seta two-thirds distance along outer margin, three long terminal setae, and two adjacent rows of about six setae distally on inner margin. Epignath with terminal circumplumose seta and fringed by fine setules .. Cheliped (Fig. 10). Basis longer than wide with single setae near distal dorsal and ventral margins; merus triangular with a seta two-thirds distance along ventral margin and paired setae near basis; carpus length similar to basis, slightly longer than wide, with two setae distal near ventral margin and group of about four setae distal on dorsal margin; propodus slightly longer than carpus, length twice width, fixed finger flattened into anvil-shaped process, with large terminal spiniform seta, about five setae midway along ventral margin, about eight setae near terminal seta along dorsal margin of fixed finger and group of three setae plus a lateral seta near articulation with dactylus; dactylus with row of small setae along ventral margin, unguis short and solid, about one eighth total length of dactylus. Pereopod 1 (Fig. 12). Coxa barely produced into anterior process with two setae; basis length approximately five times width, with simple seta and pappose seta one quarter distance along margin; merus about one-third length of basis, with small distal seta; carpus slightly longer than merus, with two distal setae; propodus almost twice length of merus, with several distal setae; unguis two-thirds length of dactylus. Pereopods 2 and 3 (Fig. 12). Similar; basis width one-third length; merus half length of basis, with short spiniform seta and two simple setae distal on ventral margin; carpus half length of merus, with paired spiniform setae and simple setae ventral and dorsal on distal margin; propodus 1.5 times length of carpus; unguis two-thirds length of dactylus. Pereopods 4 and 5 (Fig. 12). Similar; basis width about half length; merus with a pair of large ventro-distal spiniform setae; carpus with adjacent rows of three or four serrated spiniform setae along distal margin and four long simple setae on dorso-distal margin; propodus length 1.5 times merus length, with several setae along ventral margin and pappose seta plus two long simple setae near distal dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of about six flattened setae on the two sides. Pereopod 6 (Fig. 12). Similar to pereopod 5 except for propodus with comb-like row of about nine flattened denticulate setae near distal margin, and three long denticulate setae, two long simple setae and a pappose seta distal on dorsal margin; dactylus with lateral comb-like rows of about nine flattened setae. Pleopods 1 – 3 (Fig. 12). Similar; basal article with five plumose setae along outer margin and one plumose seta on inner margin; exopod with numerous plumose setae along outer margin; endopod with two plumose setae along inner margin, large terminal circumplumose seta and numerous plumose setae along outer margin. Uropod (Fig. 12). Four articles, basal article length 1.5 times width, six long setae and one short seta distally, article 2 two-thirds length of basis with several long simple setae and pappose seta distally, article 3 three-quarters length of article 2 with several long simple setae and pappose seta distally, article 4 three-quarters length of article 3 with about five long simple setae and a pappose seta. MALE. Similar to female, other than Body (Fig. 10). Cephalothorax pear-shaped, slightly longer than wide, with slight anterior concavity in lateral margin. Antennule (Fig. 10). Article 1 about five times longer than wide, with three pappose setae one-quarter distance along margin. Antenna (Fig. 10). All articles more elongate than in female, article 2 over three times as long as wide. Cheliped (Fig. 10). All articles proportionately wider than in female other than dactylus; propodus length 1.5 times width, about twice length of carpus; dactylus relatively narrow with smoothly-curving ventral margin. More description of propodus / fixed finger shape, please.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF84FFE5FF32F8DFFA64304F.taxon	distribution	Distribution. Mon Repos Beach, Qld; Hexapleomera robusta: Mediterranean, Galapagos, Atlantic coast of North and South America, Mediterranean, Atlantic coast of Africa (Sieg 1980 b). 0 – 2 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF84FFE5FF32F8DFFA64304F.taxon	discussion	Remarks. Setation on the appendages of Queensland specimens, including maxilliped, cheliped, pereopods, pleopods and uropods, differed in numerous ways from patterns described by Sieg (1980 b) for Hexapleomera robusta. Queensland animals generally possessed more setae, including spiniform setae on the distal margin of the maxilliped endite, three rather than two long setae proximal on the maxilliped coxa, and two rather than a single plumose setae on the inner margin of the pleopod endopod. They also lacked a strong tooth on the dorsal margin of the fixed finger of the male cheliped. The differences in setation perhaps reflected the size of the Queensland tanaids, which were considerably larger (4.7 mm cf. 2.5 - 3.5 mm) than those examined by Sieg (1980 b). More likely, the disparities reflected geographic differences between Australian populations and those in other regions. Whether these differences are sufficiently marked to warrant specific separation from H. robusta remains uncertain. Sieg (1980 b) does not provide information on the locality of specimens he figured, although he apparently examined material from the Atlantic and Pacific Oceans and the Mediterranean Sea relating to three nominal species (Hexapleomera robusta, Tanais testudinicola Dollfus, 1898, and Hexapleomera schmidti Dudich, 1931), which he regarded as conspecific. Hexapleomera robusta in its broadest concept is an almost cosmopolitan taxon that occurs in high densities as an ectoparasite on the tests of sea turtles. It can survive and propagate in large marine aquariums, where high population numbers have been reported as harmful to host turtles (Rob Jones, Melbourne Aquarium, pers. comm.).	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFE5FF32FE45F8C432C1.taxon	diagnosis	Diagnosis. Five pleonites present plus pleotelson. Antennule with four articles, first article 2.2 to 3 times length of second article, terminal article with five to ten aesthetascs. Antenna with seven articles, article 2 longer than wide, last two articles small. Maxillule endite with eight large terminal spiniform setae, palp with several long setae. Labium outer lobe with small terminal process. Pereopod 1 coxa with anterior bulge. Pleopod basis with one or two plumose setae on inner margin and five to nine setae on outer margin, endopod inner margin with three to six plumose setae. Uropod with six or seven articles, terminal article greatly reduced. Sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFE5FF32FE45F8C432C1.taxon	discussion	Remarks. Zeuxoides is very closely related to Zeuxo, differing in the greatly reduced terminal article of the uropod and presence of numerous aesthetascs on the antennule (Sieg 1980 b). Additional study is required to validate whether these minor differences are sufficient to warrant generic distinction. The two clades may not be monophyletic, given that species within both genera possess a highly variable number of aesthetascs and uropod articles, key features used to distinguish these genera.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFDBFF32F905F943337F.taxon	description	(Figs 13 – 15)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFDBFF32F905F943337F.taxon	materials_examined	Material examined. Holotype. Male (NMV J 56139), 4.2 mm, Governor Island, Bicheno, Tasmania (41 ° 53 ’ S 148 ° 17 ’ E), 10 m depth, kelp (Lessonia corrugata) holdfast, 20 May 1993. Paratypes. Ovigerous female (NMV J 56140), holotype location.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFDBFF32F905F943337F.taxon	diagnosis	Diagnosis. With characters of genus. Antennule article 1 about 2.5 times longer than wide in both sexes, terminal article with five or six (female) and twelve (male) aesthetascs; left mandible with lacinia mobilis tooth-shaped and only slightly reduced, right mandible with lacinia mobilis reduced and thorn-like; pereopod 1 coxa with three setae; pleopod basal article with six to eight setae on outer margin, one seta on inner margin, endopod with four setae on inner margin; uropod with seven articles in mature individuals.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFDBFF32F905F943337F.taxon	description	Description. FEMALE Body (Fig. 13). Length to 4.5 mm; preserved specimens with mottled pigmentation extending prominently from cephalothorax to pleotelson and on chelipeds, antennae and antennules. Cephalothorax rounded and narrowing anteriorly in dorsal view, length about equal to width and slightly more than one quarter body length. Pereon occupies about 52 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about five times width; pereonite 2 and 3 similar, 1.5 times length of pereonite 1; pereonites 4 and 5 largest, about twice length of pereonite 2, pereonite 6 three-quarters length of pereonite 5. Pleonites together one sixth as long as body; pleonites 1 and 2 similar, together as long as pereonite 6, with long plumose setae extending from margins part way on to the dorso-lateral surface; pleonite 3 slightly shorter than pleonite 2; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson about one-third length of pleonites; posterior margin with pair of short setae central between pair of long setae, about five long and two short setae anterior to articulation with uropod. Antennule (Fig. 13). Article 1 about 2.4 times longer than wide, three small pappose setae and about three long setae along outer margin and two clusters of several simple setae with single pappose seta distally; article 2 about one-third length of article 1, length about equal to width, with clusters of about five simple setae and about five simple setae plus pappose seta distally; article 3 about half length of article 2, with about five setae distally; article 4 greatly reduced and cap-shaped, with numerous long setae and five or six aesthetascs. Antenna (Fig. 13). Article 1 as long as wide, lacking setae; article 2 almost twice length of article 1, with two to four small setae on outer margin and two distal setae; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with several long distal simple setae and a pappose seta; article 5 two-thirds length of article 4, with about four simple distal setae and two pappose setae; sixth and seventh articles greatly reduced, much wider than long, with numerous long setae. Mouthparts (Fig. 14). Labrum carpeted by fine setae, longest setae associated with distal lateral margins. Left mandible with lacinia mobilis tooth-shaped and only slightly reduced, with two large basal denticulate setae, pars incisiva smooth and rounded, pars molaris broad and corrugated; right mandible with lacinia mobilis reduced and thorn-like, with two large basal denticulate setae, pars incisiva smooth and blunt, pars molaris broad and corrugated. Labium with inner and outer lobes covered in fine setae distally, outer lobe with small elongate terminal process and small spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae, long simple seta, and cluster of fine setae on outer margin near base of spinous setae; palp with six long simple setae. Maxilliped coxa and basis not joined medially; coxa with two large proximo-medial setae; basis finely setose marginally, with three distal setae; endite finely setulose marginally, with two short spiniform setae distal near medial margin, two short spiniform setae medial on distal margin, and two distal scythe-shaped circumplumose setae that are considerably shorter than setae on inner margin of palp; palp with four articles, article 1 slightly wider than long with two long setae distally on outer margin, article 2 slightly longer than article 1 with single seta on outer margin, four or five long setae extending distally in a row from midway near inner margin, three long distal setae and three long setae on distal margin, article 3 slightly shorter in length than article 2, fringed with two rows of about seven long setae along inner margin, article 4 approximately two-thirds length of article 3 with two rows of about six long setae distally on inner margin and single seta on outer margin. Epignath with terminal circumplumose seta and fringed by fine setules. Cheliped (Fig. 13). Sclerite with two distal setae near dorsal margin; basis longer than wide with two distal setae near ventral margin; merus triangular with group of about four setae two-thirds distance along ventral margin, one or two setae central; carpus similar in length to basis, with four to six setae distal on ventral margin, distal dorsal group of four or five setae, and single seta one-third distance along dorsal margin; propodus similar in length to carpus, with large terminal spiniform seta, about seven setae midway along ventral margin, about ten setae near dorsal margin of fixed finger and three simple setae and single pappose seta near articulation with dactylus; dactylus with row of very short setae along ventral margin, unguis short and solid, about one-fifth total length of dactylus. Pereopod 1 (Fig. 15). Coxa produced into anterior process with three setae; basis length approximately five times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus almost length of merus and carpus together, with about six setae near distal ventral margin, long seta near distal dorsal margin and pappose seta; unguis three-fifths length of dactylus. Pereopods 2 and 3 (Fig. 15). Similar; basis width between one-third and one-quarter length, slightly shorter than merus, carpus and propodus together, dorso-distal corner projecting over merus; merus two-fifths length of basis, with two short spiniform setae and three simple setae distal on ventral margin and simple seta dorso-distally; carpus between one-half and two-thirds length of merus, eight to ten serrated spiniform setae along distal margin with dorsal spiniform seta longest; propodus 1.5 times length of carpus, with pappose seta, several distal setae and three setae evenly spaced along ventral margin; unguis three-fifths length of dactylus. Pereopods 4 and 5 (Fig. 15). Similar; basis width almost half length, dorso-distal corner projecting over merus; merus two-fifths length of basis, with two short spiniform setae and about three simple setae distal on ventral margin and about four simple seta dorso-distally; carpus with two parallel rows of six or seven serrated spiniform setae around distal margin; propodus 1.2 times length of merus, with about four setae on ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with lateral comb-like row of about six flattened setae. Pereopod 6 (Fig. 15). Carpus with two parallel rows of about seven serrated spiniform setae along distal margin; propodus with distal comb-like row of about twelve flattened denticulate setae and dorso-distal group of about five slightly longer denticulate setae and several long simple setae; dactylus with lateral comb-like row of about eight flattened setae. Pleopods 1 – 3 (Fig. 15). Similar; basal article with six to eight plumose setae along outer margin and one plumose seta on inner margin; exopod with numerous plumose setae along outer margin; endopod with four plumose setae along inner margin, large terminal circumplumose seta and about eighteen plumose setae along outer margin. Uropod (Fig. 15). Seven articles; basal article length nearly twice width, with about six very long distal setae; article 2 half length of basal article; articles 3, 4, 5 and 6 with length similar to article 2, up to eight long simple setae distally and occasional pappose seta; article 7 reduced to about one-third length of article 6, with numerous very long terminal setae. MALE. Similar to female, other than Antennule (Fig. 13). About 12 aesthetascs projecting from terminal article. Cheliped (Fig. 13). Articles with greater width relative to length than female, basis length equal to width.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFDBFF32F905F943337F.taxon	etymology	Etymology. Named after Peter Last, in recognition to his contribution to studies of Tasmanian marine species and habitats.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFDBFF32F905F943337F.taxon	distribution	Distribution. Tasmania. 1 – 10 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFF8EFFDBFF32F905F943337F.taxon	discussion	Remarks. Zeuxoides lasti closely resembles Zeuxoides spongicola, a tanaid recorded from the southwestern coast of Africa (Sieg, 1980 b). Features shared by these two species include similarities in level of reduction of lacinia mobilis of mandibles, form of pereopod 1 coxa, number of aesthetascs on antennule, and number of setae on maxillule palp. Zeuxo lasti differs from Z. spongicola primarily by possessing a relatively short article 1 of antennule, with a length / breadth ratio of 2.4 compared to 4 for Z. spongicola, an extra uropod article, and two rather than one denticulate setae associated with the lacinia mobilis of the left mandible. The Australian species also possesses more setae on antennules, antennae and pleotelson, and four plumose setae on the inner margin of the pleopod endopod. With the exception of Zeuxoides casanunda, Z. lasti can be distinguished without dissection from other Australian species in Zeuxoides and the closely-related genus Zeuxo because of conspicuous plumose setae that extend around lateral margins onto the dorsal surface of pleonites 1 and 2. It differs from Zeuxoides casanunda, the only previously reported species in this genus from Australia (Bamber 2005), in lesser reduction of lacinia mobilis of right mandible, greater number of antennule aesthetascs, and more numerous spiniform setae on carpus of pereopods 2 - 6.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB0FFDEFF32FDAFF9CE3407.taxon	description	(Figs 16 – 18)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB0FFDEFF32FDAFF9CE3407.taxon	materials_examined	Material examined. Holotype. Ovigerous female (NMV J 56141), 5.3 mm, Canal Rocks, WA, 6 m, macroalgal washings, 19 Dec 1993. Paratype. Male (NMV J 56142), 3.9 mm, holotype location. Other material. One male, four females (NMV J 57283), Wreck Rock, Marmion Lagoon, WA, 5 m, sponge washings, 12 Jan 1993. Three females (NMV J 57284), Marmion Lagoon, WA, 4 - 8 m, algal washings, 14 Jan 1993.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB0FFDEFF32FDAFF9CE3407.taxon	diagnosis	Diagnosis. With characters of genus. Antennule article 1 about 2.5 (female) and 4.0 (male) times longer than wide, terminal article with five (female) and six to eight (male) aesthetascs; left mandible with lacinia mobilis reduced to acutely-pointed peg-like process, right mandible with lacinia mobilis reduced and thornlike; pereopod 1 coxa with pronounced anterior bulge with five setae; pleopod basal article with nine setae on outer margin, one seta on inner margin, endopod with six setae on inner margin; uropod with seven articles in mature individuals.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB0FFDEFF32FDAFF9CE3407.taxon	description	Description. FEMALE Body (Fig. 16). Length to 5.3 mm; preserved specimens with mottled pigmentation extending prominently from cephalothorax to pleonite 5 other than pereonites 1 and 2, and on chelipeds, antennules and antennae. Cephalothorax rounded and narrowing anteriorly in dorsal view, slightly longer than wide, length just less than one quarter body length. Pereon occupies about 56 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about five times width; pereonite 2 twice length of pereonite 1, three-quarters length of pereonite 3; pereonites 4 and 5 largest, about twice length of pereonite 2, pereonite 6 slightly shorter than pereonite 5. Pleonites together one sixth as long as body; pleonites 1 and 2 similar, together slightly longer than pereonite 6, with long plumose setae extending from margins part way on to the dorso-lateral surface; pleonite 3 slightly shorter than pleonite 2; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson about one-third length of pleonites; posterior margin with pair of short setae central between pair of long setae, about three long and two short setae anterior to articulation with uropod, two lateral setae. Antennule (Fig. 16). Article 1 about 2.5 times longer than wide, three small pappose setae and about three long setae along outer margin and two clusters of several simple setae with pappose seta distally; article 2 about one-third length of article 1, about 1.5 times longer than wide, with clusters of about five simple setae and about five simple setae plus pappose seta distally; article 3 about half length of article 2, with about five setae distally; article 4 greatly reduced and cap-shaped, with numerous long setae and five aesthetascs. Antenna (Fig. 16). Article 1 as long as wide, lacking setae; article 2 more than twice length of article 1, with two to four small setae on outer margin and two distal setae; article 3 half length of article 2, lacking setae; article 4 2.5 times length of article 3, with about six long distal simple setae and a pappose seta; article 5 two-thirds length of article 4, with about four simple distal setae and two pappose setae; sixth and seventh articles greatly reduced, much wider than long, with numerous long setae. Mouthparts (Fig. 17). Labrum carpeted by fine setae, longest setae associated with distal lateral margins. Left mandible with lacinia mobilis reduced to pointed peg-like process with short spiniform accessory seta, pars incisiva smooth and acutely-pointed, pars molaris broad and corrugated; right mandible with lacinia mobilis reduced and thorn-like, lacking accessory seta, pars incisiva bifurcated, pars molaris broad and corrugated. Labium with inner and outer lobes covered in fine setae distally, outer lobe with small elongate terminal process and small spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae, and cluster of fine setae on outer margin near base of spinous setae; palp with eight long simple setae. Maxilliped coxa and basis not joined medially; coxa with three large proximo-medial setae; basis with two distal setae; endite finely setulose marginally, with two short spiniform setae distal near medial margin, two short spiniform setae medial on distal margin, and two distal circumplumose setae that are about onequarter length of simple setae on inner margin of palp; palp with four articles, article 1 width similar to length with two long setae distally on indented outer margin, article 2 slightly longer than article 1 with single seta on outer margin, four or five long setae extending distally in a row from midway near inner margin, three long distal setae near articulation with article 3, and three long setae on distal inner margin, article 3 slightly shorter in length than article 2, fringed with two rows of about seven long setae along inner margin, article 4 approximately two-thirds length of article 3 with two rows of about six long setae distally on inner margin and single seta on outer margin. Epignath with terminal circumplumose seta and fringed by fine setules. Cheliped (Fig. 16). Basis longer than wide with distal seta near ventral margin; merus triangular with group of about three setae two-thirds distance along ventral margin, one or two setae distal on dorsal margin; carpus similar in length to basis, with three setae distal on ventral margin, three setae distal on dorsal margin, and seta midway along dorsal margin; propodus similar in length to carpus, with large terminal spiniform seta, about seven setae midway along ventral margin, about eight setae near dorsal margin of fixed finger and three simple setae and single pappose seta near articulation with dactylus; dactylus with row of about 14 very short setae along ventral margin, unguis short and solid, about one-fifth total length of dactylus. Pereopod 1 (Fig. 18). Coxa produced into anterior process with five setae; basis length approximately six times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus almost length of merus and carpus together, with about six setae near distal ventral margin, long seta near distal dorsal margin and pappose seta; unguis three-fifths length of dactylus. Pereopods 2 and 3 (Fig. 18). Similar; basis width between one-third and one-quarter length, slightly shorter than merus, carpus and propodus together; merus two-fifths length of basis, with two short spiniform setae and about three simple setae distal on ventral margin and simple seta dorso-distally; carpus two-thirds length of merus, eight to ten serrated spiniform setae near distal margin with dorsal spiniform seta longest; propodus 1.5 times length of carpus, with pappose seta, several distal setae and three setae evenly spaced along ventral margin; unguis three-fifths length of dactylus. Pereopods 4 and 5 (Fig. 18). Similar; basis length 2.3 times width; merus two-fifths length of basis, with two short spiniform setae and about three simple setae distal on ventral margin and about four simple seta dorso-distally; carpus with two parallel rows of six or seven serrated spiniform setae and about four longer simple setae near distal margin; propodus 1.2 times length of merus, with about four setae on ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with lateral comb-like row of about six flattened setae. Pereopod 6 (Fig. 18). Basis length 2.3 times width; merus two-fifths length of basis, with two short spiniform setae and about three simple setae distal on ventral margin and about four simple seta dorso-distally; carpus with two parallel rows of about seven serrated spiniform setae and four long simple setae near distal margin; propodus with distal comb-like row of about ten flattened denticulate setae and dorso-distal group of about five slightly longer denticulate setae, a pappose seta and pair of long simple setae; dactylus with lateral comb-like row of about eight flattened setae. Pleopods 1 – 3 (Fig. 18). Similar; basal article with about eight plumose setae along outer margin and one plumose seta on inner margin; exopod with about 36 plumose setae along outer margin; endopod with six plumose setae along inner margin, large terminal circumplumose seta and about eighteen plumose setae along outer margin. Uropod (Fig. 18). Seven articles; basal article length nearly twice width, with about six very long distal setae; article 2 half length of basal article; articles 3, 4, 5 and 6 with length similar to article 2, up to eight long simple setae and pappose seta distally; article 7 reduced to about one-third length of article 6, with about seven very long terminal setae. MALE. Similar to female, other than Antennule (Fig. 16). Basal article length about four times width, article 2 length almost twice width, terminal article with six to eight projecting aesthetascs. Antenna (Fig. 16). Articles proportionately longer than in female, article 2 length about twice width. Cheliped (Fig. 16). Articles with greater width relative to length than female, basis and carpus length equal to width.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB0FFDEFF32FDAFF9CE3407.taxon	etymology	Etymology. Named after Susan Laurie-Bourque, in recognition to her artistic skills and invaluable help with this study.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB0FFDEFF32FDAFF9CE3407.taxon	distribution	Distribution. Perth to Canal Rocks, WA. 5 – 6 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB0FFDEFF32FDAFF9CE3407.taxon	discussion	Remarks. The combination of shape of mandibles, relatively low number of aesthetascs on antennule, uropod with seven articles, and presence of five setae on coxa of pereopod 1 separate this species from all others in the genus. Zeuxoides lauriebourqueae shows greatest similarity with another southwestern Australian species Zeuxoides casanuda, differing primarily in lesser reduction of lacinia mobilis of mandibles, more numerous spiniform setae on carpus of pereopods 2 – 6, greater number of terminal setae on maxillule palp, and pleopod endopod with six rather than four plumose setae along inner margin. It differs from Zeuxo lasti primarily in the more reduced character of the mandibles, narrower body proportions, details of setation, and lack of pigmentation on pereonites 1 and 2.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB5FFD4FF32FA77FAEB3387.taxon	description	(Figs 19 – 21)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB5FFD4FF32FA77FAEB3387.taxon	materials_examined	Material examined. Holotype. Ovigerous female (NMV J 56143), 2.7 mm, Cloudy Lagoon, Tasmania (43 º 26 ’ S 147 º 13 ’ E), 1 m depth, seagrass (Heterozostera nigricaulis) washings, 20 Apr 1992. Paratypes. Four ovigerous females, four males, two juveniles (NMV J 56144), holotype location, 29 Mar 1992. Other material. Six females, six juveniles, Broulee Island, NSW (35 º 51 ’ S, 150 º 11 ’ E), 1 m, macroalgal washings, 29 Sep 1999; two males, three females, Low Head, Tasmania (40 º 51 ’ S, 146 º 48 ’ E), 1 m, macrophyte washings, 4 Oct 1999; four males, twelve females, Rocky Cape West, Tasmania (41 º 04 ’ S, 145 º 30 ’ E), 1 m, macroalgal washings, 4 Oct 1999; two males, 14 females, Cloudy Bay, Tasmania (43 º 27 ’ S, 147 º 13 ’ E), macroalgal washings, 13 Oct 1999; one male, three females, Conningham, Tasmania (43 º 05 ’ S, 147 º 17 ’ E), macroalgal washings, 5 Oct 1999; seven females, four juveniles, Tinderbox, Tasmania (43 º 04 ’ S, 147 º 19 ’ E), macroalgal washings, 5 Oct 1999; one male, four females Smooth Pool, Eyre Peninsula, SA (32 º 55 ’ S, 134 º 04 ’ E), macrophyte washings from low intertidal rockpool, 11 Sep 1993.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB5FFD4FF32FA77FAEB3387.taxon	diagnosis	Diagnosis. With characters of genus. Antennule article 1 about 2.5 times longer than wide in both sexes, terminal article with three or four (female) and six to eight (male) aesthetascs; left mandible with lacinia mobilis reduced and peg-like with acutely-pointed tip, right mandible with lacinia mobilis almost lacking, reduced to very fine thorn; pereopod 1 coxa with three or four setae; pleopod basal article with five or six setae on outer margin, one seta on inner margin, endopod with two to four setae on inner margin; uropod with six articles in mature individuals.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB5FFD4FF32FA77FAEB3387.taxon	description	Description. FEMALE. Body (Fig. 19). Length to 3.0 mm; preserved specimens with mottled pigmentation extending prominently from cephalothorax to pleotelson and on chelipeds, pereopods, antennae and articles 1 and 3 of antennules, often with two prominent dark spots on either side of the pleotelson. Cephalothorax rounded and narrowing anteriorly in dorsal view, length slightly more than one-fifth body length. Pereon occupies about 52 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about five times width; pereonites 2 and 3 similar, almost twice length of pereonite 1; pereonites 4 and 5 largest, about 1.5 times length of pereonite 2, pereonite 6 three-quarters length of pereonite 5. Pleonites together one sixth as long as body; pleonites 1 and 2 similar, together as long as pereonite 6, with long plumose setae extending from margins part way on to the dorso-lateral surface; pleonite 3 slightly shorter than pleonite 2; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson about length of pleonite 2; posterior margin with pair of short setae central between pair of long setae, three or four long setae plus shorter pappose seta anterior to articulation with uropod, two or three long setae postero-laterally. Antennule (Fig. 19). Article 1 about 2.4 times longer than wide, three small pappose setae and about three long setae along outer margin and two clusters of about four simple setae with single pappose seta distally; article 2 about one-third length of article 1, length about equal to width, with clusters of about five simple setae and about five simple setae plus pappose seta distally; article 3 about two-thirds length of article 2, with about five setae distally; article 4 greatly reduced and cap-shaped, with numerous long setae and three or four aesthetascs. Antenna (Fig. 19). Article 1 as long as wide, lacking setae; article 2 about 1.5 times length of article 1, with two setae on outer margin and two distal setae; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with about five distal setae; article 5 two-thirds length of article 4, with about four simple distal setae; sixth and seventh articles greatly reduced, much wider than long, with about seven long setae. Mouthparts (Fig. 20). Labrum carpeted by fine setae. Left mandible with lacinia mobilis reduced and peg-like with acutely-pointed tip and thorn at base, pars incisiva with acutely-pointed tip, pars molaris broad and corrugated; right mandible with lacinia mobilis almost lacking, reduced to very fine thorn, lacking accessory seta, pars incisiva smooth and acute, pars molaris broad and corrugated Labium with inner and outer lobes covered in fine setae distally, outer lobe with small ovate terminal process and small spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae, cluster of fine setae on outer margin near base of spinous setae; palp with four to eight long simple setae. Maxilliped coxa and basis not joined medially; coxa with two large proximo-medial setae; basis finely setulose marginally, with single long seta distally; endite setulose marginally, with two short spiniform setae distal near medial margin, two short spiniform setae medial on distal margin, and two distal circumplumose setae that are half length of setae on inner margin of palp; palp with four articles, article 1 as long as wide with long seta distal on outer margin, article 2 slightly longer than article 1 with single seta distal on outer margin, five very long setae extending distally in a row from midway along inner margin and two long distal circumplumose setae, article 3 considerably smaller than article 2, fringed with two rows of about seven long setae along inner margin, article 4 approximately two-thirds length of article 3 with two rows of about six long setae distally on inner margin and single seta on outer margin. Epignath with terminal circumplumose seta and fringed by fine setules. Cheliped (Fig. 19). Basis longer than wide with distal seta near ventral margin; merus triangular with group of about two setae three-quarters distance along ventral margin, two setae central; carpus similar in length to basis, with about four setae distal on ventral margin, distal dorsal group of four or five setae; propodus similar in length to carpus, with large terminal spiniform seta, about four setae midway along ventral margin, about eight setae near dorsal margin of fixed finger and three simple setae and single pappose seta near articulation with dactylus; dactylus with row of about eight very short setae along ventral margin, unguis short and solid, about one-sixth total length of dactylus. Pereopod 1 (Fig. 21). Coxa produced into slight anterior bulge with three or four setae; basis length approximately four times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus length of merus and carpus together, with about four setae near distal ventral margin; unguis threefifths length of dactylus. Pereopods 2 and 3 (Fig. 21). Similar; basis width between one-third and one-quarter length, slightly shorter than merus, carpus and propodus together; merus two-fifths length of basis, with short spiniform seta and about three simple setae distal on ventral margin; carpus between one-half and two-thirds length of merus, with about six serrated spiniform setae along distal margin with dorsal spiniform seta longest; propodus 1.5 times length of carpus, with about four distal setae; unguis three-fifths length of dactylus. Pereopods 4 and 5 (Fig. 21). Similar; basis width about one-third length; merus two-fifths length of basis, with two short spiniform setae and about three simple setae distal on ventral margin and about two simple setae dorso-distally; carpus with two parallel rows of three and five serrated spiniform setae and about four long simple setae near distal margin; propodus 1.2 times length of merus, with about three setae on ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with lateral comb-like row of about six flattened setae. Pereopod 6 (Fig. 21). Basis width about one-third length; merus two-fifths length of basis, with two short spiniform setae and about three simple setae distal on ventral margin and about two simple setae dorso-distally; carpus with two parallel rows of about five spiniform setae near distal margin; propodus with distal comb-like row of about ten flattened denticulate setae and dorso-distal group of about four slightly longer denticulate setae and a long simple seta and pappose seta; dactylus with lateral comb-like rows of about eight flattened setae. Pleopods 1 – 3 (Fig. 21). Similar; basal article with five or six plumose setae along outer margin and one plumose seta on inner margin; exopod with about 30 plumose setae along outer margin; endopod with two to four plumose setae along inner margin, large terminal circumplumose seta and about 18 plumose setae along outer margin. Uropod (Fig. 21). Six articles; basal article length slightly more than twice width, with two long and two short distal setae; article 2 variable in length, but in mature individuals often as long as basal article and with constriction midway, an apparent preliminary stage to segmentation, and about four distal setae; articles 3, 4 and 5 similar in length, with four to six distal setae; article 6 reduced to about one-third length of article 5. MALE. Similar to female, other than Body (Fig. 19). Cephalothorax approaching triangular in dorsal view. Antennule (Fig. 19). Article 1 about 2.5 times longer than wide; article 4 with six to eight terminal aesthetascs. Cheliped (Fig. 19). All articles proportionately wider than in female; basis and carpus length equal to width; dactylus with unguis about one-tenth total length of dactylus.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB5FFD4FF32FA77FAEB3387.taxon	etymology	Etymology. Named after Ron Mawbey, in recognition of his contribution to the study of Tasmanian fauna over four decades.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB5FFD4FF32FA77FAEB3387.taxon	distribution	Distribution. Eyre Peninsula, SA, to Broulee I, NSW, and Tasmania. 0 – 5 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFB5FFD4FF32FA77FAEB3387.taxon	discussion	Remarks. Zeuxoides mawbeyi possesses a reduced terminal article in the uropod, but in other morphological features, particularly with respect to details of setation, is allied to species in the genus Zeuxo. Sieg (1980 b) regards the presence of numerous aesthetascs in the male antennule as a distinguishing characteristic of Zeuxoides; however, as few as six are present in Z. mawbeyi whereas up to ten occur in Zeuxo russi. Zeuxoides mawbeyi shows much greater reduction in the lacinia mobilis of the mandibles than other known species of Zeuxoides, with the exception of southwestern Australian Zeuxoides casanunda. It differs from that species most notably in possessing a uropod with six rather than seven articles, an acutely-pointed lacinia mobilis of left mandible, and in details of setation, including slightly greater number of setae on pleopods (Bamber, 2005). This species exhibits considerable variation in setal number and patterns of pigmentation between and within sites. Genetic studies should be undertaken to assess whether the species comprises a complex of more than one cryptic species.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFBFFFD4FF32FCFDFFEF3509.taxon	diagnosis	Diagnosis. Five pleonites present plus pleotelson. Antennule with four articles, first article over 2.5 times length of second article, terminal article with two to eight aesthetascs. Antenna with seven articles, article 2 longer than wide. Maxillule endite with eight large terminal spiniform setae, palp with several long setae. Labium outer lobe with small terminal process. Pereopod 1 coxa with anterior bulge. Pleopods similar, basis with one or two plumose setae on inner margin and three to eight setae on outer margin, endopod inner margin with one to six plumose setae. Uropod with four to seven articles, terminal article normal.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFBCFFCAFF32FDAFFEC9360F.taxon	description	(Figs 22 – 24)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFBCFFCAFF32FDAFFEC9360F.taxon	materials_examined	Material examined. Two males, five females (two ovigerous) (NMV J 56611), Mrs Macquarie’s Chair, Sydney Harbour, NSW, fucoid algal washings, 1 April 1993, low water mark. One male, eight females, one juvenile, Kettering, Tas, pylon scrapings, collected by Aquenal Pty Ltd (Aquenal 2003), 9 Jul 2003, 2 m depth; one male, 13 juveniles (NMV J 57286), Murohama, Otsuchi Bay, Japan, Zostera marina bed, collected by I. Takeuchi, 6 June 1990, 2 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFBCFFCAFF32FDAFFEC9360F.taxon	diagnosis	Diagnosis. With characters of genus. Dorsal surface with mottled pigmentation, darkest on cephalothorax; antennule article 1 about three times longer than wide, terminal article with two or three (female) and three or four (male) aesthetascs; left mandible with large lacinia mobilis with undulating margin, right mandible with lacinia mobilis reduced to peg-like process; pereopod 1 coxa produced anteriorly into bulge with four setae; pleopod basal article with five or six setae on outer margin, one seta on inner margin, endopod with two to four setae on inner margin; uropod with six or seven articles in mature individuals; sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFBCFFCAFF32FDAFFEC9360F.taxon	description	Description. FEMALE Body (Fig. 22). Length to 2.5 mm in length; preserved specimens with dark pigmentation covering most of cephalothorax, chelipeds, and articles 1 and 3 of antennule, lighter pigmentation on pereon and pleon. Cephalothorax rounded and narrowing anteriorly in dorsal view, length slightly greater than width and slightly more than one-fifth body length. Pereon occupies about 53 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonites 2 and 3 similar, almost twice length of pereonite 1; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 about three-quarters length of pereonite 5. Pleonites together one-fifth as long as body; pleonites 1, 2 and 3 decreasing in length and width, each about four-fifths length of preceding segment; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson about length of pleonite 2; posterior margin with pair of short setae central between pair of long setae, two simple setae and pappose seta anterior to articulation with uropod, three long simple setae posterior on lateral margin. Antennule (Fig. 22). Total length extends three fifths length of cephalothorax, with article 1 about three times longer than wide, with three two or three pappose setae and two simple setae two-fifths distance along outer margin and about three pappose and four long simple setae distally; article 2 about one-third length of article 1, about twice as long as wide, with about two pappose and six simple setae distally; article 3 length similar to width, about two-third length of article 2, with about four setae distally; article 4 greatly reduced and cap-shaped, with about six long setae and three or four aesthetascs. Antenna (Fig. 22). Article 1 as long as wide, lacking setae; article 2 twice length of article 1, length about 1.5 times width, with about two seta midway on outer margin and two setae distally; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with about five long distal setae; article 5 four-fifths length of article 4, with five or six simple and pappose setae distally; article 6 length similar to width, with about three simple setae; seventh article reduced to small terminal cap with about 15 long setae. Mouthparts (Fig. 23). Labrum distally carpeted by fine setules. Left mandible with large lacinia mobilis, with undulating margin and large denticulate seta at base, pars incisiva smooth and acute, pars molaris broad and corrugated; right mandible with lacinia mobilis reduced to peg-like process with two denticulate setae at base, pars incisiva with blunt apex, pars molaris broad and corrugated. Labium with inner and outer lobes covered by fine setules near distal margins, outer lobe with pointed terminal process and with very fine spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae and cluster of fine setae on outer margin near base of spines; palp with five to seven long setae. Maxilliped coxa and basis not joined medially; coxa with two small proximo-medial setae; basis with a short distal seta; endite setulose around distal margin, with two small spiniform setae distal near medial margin, two small spiniform setae medial on distal margin and two circumplumose setae near distal margin that are of similar length to long setae on inner margin of palp; palp with four articles, article 1 as long as wide with seta on outer margin, article 2 slightly longer than article 1 with single seta on outer margin, four or five very long setae extending distally in a row from midway along inner margin and three long distal setae, article 3 smaller than article 2, fringed with about nine long setae along inner margin, article 4 similar in length to article 3 but two-thirds width, with a long seta distal on outer margin, a long terminal seta, and two adjacent rows of about five setae distal on inner margin. Epignath with terminal circumplumose seta and fringed by fine setules. Cheliped (Fig. 22). Basis longer than wide with one distal seta near ventral margin and one seta adjacent to articulation with merus; merus triangular with three setae three-quarters distance along ventral margin and two medial setae; carpus similar in length to basis, longer than wide, with about five setae distal near ventral margin, about four distal dorsal setae and one seta one-third distance along dorsal margin; propodus with five to six setae on ventral margin, about seven long setae extending as comb along inner margin of fixed finger, and group of three or four setae plus large pappose seta near articulation with dactylus; dactylus with row of about 10 very short setae along ventral margin, unguis short and solid, about one-fifth total length of dactylus. Pereopod 1 (Fig. 24). Coxa produced anteriorly into bulge with four setae; basis length approximately five times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus length similar to merus and carpus together, with three simple distal setae, seta two-thirds distance along dorsal margin and pappose seta two-thirds distance along ventral margin; unguis two-thirds length of dactylus. Pereopods 2 and 3 (Fig. 24). Similar; basis width one-quarter length, length slightly less than merus, carpus and propodus together; merus two-fifths length of basis, with one short spiniform seta and two simple setae distal on ventral margin, and one simple seta distal on dorsal margin; carpus two-thirds length of merus, with about four serrated spiniform setae along distal margin with dorsal spiniform seta largest; propodus 1.6 times length of carpus; unguis three-fifth length of dactylus. Pereopods 4 and 5 (Fig. 24). Similar; basis width about one-third length; merus with a pair of large spiniform setae and two simple setae distal near ventral margin; carpus with two parallel rows of three or four serrated spiniform setae around distal margin; propodus 1.4 times length of merus, with seta distal near ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of about seven flattened setae. Pereopod 6 (Fig. 24). Basis width about one-quarter length; merus with a pair of large spiniform setae and two simple setae distal near ventral margin; carpus with parallel rows of three spiniform setae around distal margin; propodus with distal comb-like row of about six flattened denticulate setae and pair of very long simple setae and pappose seta; dactylus with lateral comb-like rows of about ten setae. Pleopods 1 – 3 (Fig. 24). Similar; basal article length similar to width, with five or six plumose setae along outer margin and one plumose seta on inner margin; exopod with about 28 plumose setae on outer margin; endopod with two to four plumose setae on inner margin, large terminal circumplumose seta and about twelve plumose setae along outer margin. Uropod (Fig. 24). Six or seven articles, fewer on immature animals; basal article length about twice width, with about five distal setae; articles 2, 3, 4 and 5 similar in length, with two to five distal setae; terminal article similar in length to preceding article, with about seven very long simple terminal setae and pappose seta. MALE. Similar to female, other than Body (Fig. 22). Cephalothorax pear-shaped in dorsal view with concavity in margin. Antennule (Fig. 22). Article 1 about 3.5 times longer than wide; article 3 length almost twice width; article 4 with three or four projecting aesthetascs. Cheliped (Fig. 22). All articles proportionately wider than in female; basis and carpus length similar to width; dactylus with unguis about one-tenth total length of dactylus.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFBCFFCAFF32FDAFFEC9360F.taxon	distribution	Distribution. Sydney, NSW; Hobart and Kettering, Tas; California to British Columbia, Japan (Sieg 1980 b). 0 – 5 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFBCFFCAFF32FDAFFEC9360F.taxon	discussion	Remarks. Following Sieg (1980 b), species of Zeuxo are primarily distinguished from each other on the basis of shape of mandibles, morphology and setation of coxa of pereopod 1, number of uropod articles, number of antennule aesthetascs, and arrangement of spiniform setae on pereopods and plumose setae on pleopods. These characters on Australian specimens attributed here to Zeuxo normani agree well with specimens of Zeuxo normani examined from Otsuchi Bay, Japan, although reaching a smaller maximum length. Australian animals mature at ca. 2 mm length, whereas Japanese animals at the same body size typically are immature, with uropods four- rather than six-segmented at that size. Animals in both regions possess similar distinctive pigmentation, with the cephalothorax markedly darker than the rest of the body. Other than a few minor details of setation, the appearance of Australian animals conforms with descriptions of North American Zeuxo normani, including type material from Monterey, California (Richardson 1905; Sieg 1980 b). Specimens in all regions possess similar mandibles, a strongly projecting lobe on the coxa of pereopod 1 with four associated setae, similar pleopod setation, relatively few aesthetascs on antennule, and maxilliped endite with long projecting circumplumose setae. Australian specimens differ from those described by Sieg (1980 b) in possessing two rather than one setae at the base of the maxilliped, and up to seven rather than four long terminal setae on the maxillule palp. The wide geographic distribution of this species, encompassing both Northern and Southern Hemispheres, indicates the likelihood that it has been transported by shipping across ocean basins. Whether the species moved from the Northern to Southern Hemisphere or vice versa remains conjectural. Zeuxo normani has an extensive range along the southeastern Australian coast, albeit within estuaries, as well as occurring commonly off the Pacific coast of North America and Japan. Despite Z. normani having been initially reported in North America in 1905, no useful descriptions of tanaids were made from the Australian coast prior to that time, nor during the subsequent century. Thus, the species may well have been present in Australia since prior to historical times but unreported. The sole tanaid previously described within the Australian range of Z. normani, Tanais tenuicornis Haswell (1881), cannot presently be assigned to genus, let alone species, because the original description is poor and type material is lost (Springthorpe & Lowry 1994). Sieg (1980 b) regards T. tenuicornis as nomina dubia with affinities to the tribe Anatanaini (i. e., Anatanais, Zeuxoides or Zeuxo). Although possibly a species of Zeuxo, this enigmatic tanaid is unlikely to be conspecific with Z. normani given that its reported size (1 / 4 inch = 6 mm) is much greater than the maximum size of locally observed specimens of Z. normani (2.5 mm).	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFA6FFC0FF32FF55F900323F.taxon	description	(Figs 25 – 27)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFA6FFC0FF32FF55F900323F.taxon	materials_examined	Material examined. Holotype. Female (NMV J 56147), 1.8 mm, Coral Beach, Qld, (20 º 17 ’ S 148 º 48 ’ E), 2 m depth, 26 Oct 1999. Paratype. One male, three females, two juveniles (NMV J 56148), 1.6 mm. Holotype location. Other material. Six females, four juveniles, Mandalay Point, Qld (20 º 16 ’ S, 148 º 44 ’ E), 2 m, macrophyte washings, 26 Sep 1999.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFA6FFC0FF32FF55F900323F.taxon	diagnosis	Diagnosis. With characters of genus. Dorsal surface with dark chromatophore-like flecks; antennule article 1 about twice (female) and 2.5 times (male) longer than wide, terminal article with four (female) and seven or eight (male) aesthetascs; left mandible with lacinia mobilis reduced peg-like and acutely pointed, right mandible with lacinia mobilis lacking; pereopod 1 coxa produced anteriorly into slight bulge with two or three setae; pleopod basal article with six setae on outer margin, one seta on inner margin, endopod with one seta on inner margin; uropod with six or seven articles in mature individuals; sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFA6FFC0FF32FF55F900323F.taxon	description	Description. FEMALE Body (Fig. 25). Length to 2.5 mm; preserved specimens with numerous dark chromatophore-like flecks on cephalothorax, pereonites, pleonites and pleotelson, flecks not coalescing as band of pigment but disproportionately present behind eyes of some individuals (as indicated in Fig. 25 male). Cephalothorax rounded and narrowing anteriorly in dorsal view, slightly longer than wide one-quarter body length. Pereon occupies about 51 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonites 2 and 3 similar, almost twice length of pereonite 1; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 about three-quarters length of pereonite 5. Pleonites together about one-fifth as long as body; pleonites 1, 2 and 3 slightly decreasing in length and width, each about five-sixths length of preceding segment; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson 1.5 times length of pleonite 2; posterior margin with pair of short setae central between pair of long setae, about four setae anterior to articulation with uropod, two long simple setae posterior on lateral margin. Antennule (Fig. 25). Total length extends two-thirds length of cephalothorax, with article 1 length twice width, with one to three pappose setae one-third distance along outer margin and two or three pappose setae and about four long simple setae distally; article 2 about one-third length of article 1, about 1.2 times longer than wide, with two pappose setae and about four simple setae distally; article 3 length almost twice width, about three-quarters length of article 2, with two or three pappose setae and about four simple setae distally; article 4 greatly reduced and cap-shaped, with about seven long simple setae and four aesthetascs. Antenna (Fig. 25). Article 1 as long as wide, lacking setae; article 2 1.5 times length of article 1, length about 1.5 times width, with seta midway on outer margin and two setae distally; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with four long distal setae; article 5 four-fifths length of article 4, with about three simple setae and two pappose setae distally; article 6 length similar to width, with about six long setae; seventh article reduced to small terminal cap with about eight long setae. Mouthparts (Fig. 26). Labrum with setulose fringe. Left mandible with lacinia mobilis greatly reduced, peg-like and acutely pointed, lacking accessory seta, pars incisiva smooth with blunt apex, pars molaris broad and corrugated; right mandible with lacinia mobilis and accessory seta lacking, pars incisiva smooth and acute, pars molaris broad and corrugated. Labium with inner lobe setulose; outer lobe setulose on distal margin, with pointed terminal process and with very fine spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae, setulose on outer margin near base of spines; palp with about seven long setae. Maxilliped coxa and basis not joined medially; basis lacking fine marginal setae, with a distal seta; endite setulose around distal margin, with two short flat setae on distal margin and two circumplumose setae near distal margin that are half length of setae on inner margin of palp; palp with four articles, article 1 wider than long with seta distal on outer margin, article 2 with single seta distal on outer margin, four long setae extending distally in a row from midway along inner margin and two long distal setae, article 3 fringed with about eight long setae along inner margin, article 4 similar in length to article 3 with similar width, with a long seta distal on outer margin, a long terminal seta, and two adjacent rows of about five setae distal on inner margin. Epignath with terminal circumplumose seta and fringe of fine setules. Cheliped (Fig. 25). Basis longer than wide with one distal seta near ventral margin and one seta adjacent to articulation with merus; merus triangular with two setae two-thirds distance along ventral margin; carpus slightly longer than basis, longer than wide, with three setae two-thirds distance along ventral margin, three distal dorsal setae and one seta one-third distance along dorsal margin; propodus with five to six setae midway along ventral margin, about seven long setae extending along dorsal margin of fixed finger as comb to just above ventral margin of dactylus when dactylus closed, and group of three or four setae plus large pappose seta near articulation with dactylus; dactylus with row of about ten very short setae along ventral margin, unguis short and solid, about one-sixths total length of dactylus. Pereopod 1 (Fig. 27). Coxa produced anteriorly into slight bulge with two or three setae; basis length approximately five times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus length similar to merus and carpus together, with about six simple setae near distal margin and seta two-thirds distance along ventral margin; unguis three-fifths length of dactylus. Pereopods 2 and 3 (Fig. 27). Similar; basis width one-quarter length, length slightly less than merus, carpus and propodus together; merus two-fifths length of basis, with one spiniform setae and two or three simple setae distal on ventral margin and one simple seta distal on dorsal margin; carpus two-thirds length of merus, two rows of about three serrated spiniform setae along distal margin with dorsal spiniform seta largest; propodus 1.5 times length of carpus; unguis half length of dactylus. Pereopods 4 and 5 (Fig. 27). Similar; basis width about one-third length; merus with a pair of large spiniform setae and two simple setae distal on ventral margin, two simple setae distal on dorsal margin; carpus with two adjacent rows of about four serrated spiniform setae and two long simple setae near distal margin; propodus 1.5 times length of merus, with one or two setae distal near ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of about nine flattened setae. Pereopod 6 (Fig. 27). Basis width about two-fifths length; merus with a pair of large spiniform setae and two simple setae distal on ventral margin, two simple setae distal on dorsal margin; carpus with two parallel rows of about four spiniform setae around distal margin; propodus with distal comb-like row of about nine flattened denticulate setae and dorso-distal group of two long simple setae and pappose seta; dactylus with lateral comb-like rows of about ten setae. Pleopods 1 – 3 (Fig. 27). Similar; basal article length similar to width, with six plumose setae along outer margin and one plumose seta on inner margin; exopod with about 25 plumose setae along outer margin; endopod with one plumose seta on inner margin, large terminal circumplumose seta and about 13 plumose setae along outer margin. Uropod (Fig. 27). Six or seven articles, fewer on immature animals; basal article length about twice width, with about six distal simple setae; article 2 longer than more distal articles, length similar to basal article, with about three simple setae and a plumose seta; article 3 half length of article 2, with about four simple setae and a plumose seta; articles 4 and 5 similar, length slightly longer than article 3, with about four simple setae and a plumose seta; terminal article two-thirds length of preceding article, with about seven very long terminal setae. MALE. Similar to female, other than Antennule (Fig. 25). Total length slightly less than length of cephalothorax, with article 1 about length 2.5 times width; article 4 with seven or eight projecting aesthetascs. Cheliped (Fig. 25). All articles proportionately wider than in female; basis and carpus length similar to width; dactylus with unguis about one-eighth total length of dactylus.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFA6FFC0FF32FF55F900323F.taxon	etymology	Etymology. Named in memory of Stuart Bell in recognition of his contribution to, and enthusiasm for, marine science.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFA6FFC0FF32FF55F900323F.taxon	distribution	Distribution. Central Qld. 2 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFA6FFC0FF32FF55F900323F.taxon	discussion	Remarks. This species is very similar to both Zeuxo russi and the Hawaiian and Gambier Island species Zeuxo seurati (Nobili), with synapomorphies that include number of setae on pleopods and maxilla, form and setation of pereopod 1 coxa, number of uropod articles, number of antennule aesthetascs, and loss of lacinia mobilis of left mandible. Zeuxo belli and Z. russi differ most obviously in their distinctive dorsal pigmentation patterns, with Z. belli possessing dark irregular speckles and Z. russi a mask anteriorly on the dorsal surface behind the eyes and dark pigmented bands posterior on body segments. Patterns of pigmentation on the dorsal surface of Z. seurati have not been described. The three species also differ in body proportions — with Z. belli the more elongate species in body, antennules and antennae — and in the arrangement of setae on maxillipeds and chelipeds, including comb setae along the cheliped fixed finger of Z. belli that are half the length of comparable setae in Z. russi and Z. seurati.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFABFFC7FF32FC6FFFBD3517.taxon	description	(Figs 28 – 30)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFABFFC7FF32FC6FFFBD3517.taxon	materials_examined	Material examined. Holotype. Female (NMV J 56149), 2.8 mm Seven Mile Beach, WA, 2 m depth, Amphibolis antarctica washings, 1 May 1986. Paratypes. Two males, three females (NMV J 56150), holotype location. Other material. One male, five females (NMV J 57285), Cliff Head, WA, 1 m depth, Amphibolis antarctica washings, 1 May 1986; two males, one female, Bickley Point, Rottnest Island, WA, 0.5 m, Amphibolis washings, 10 Jan 1991.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFABFFC7FF32FC6FFFBD3517.taxon	diagnosis	Diagnosis. With characters of genus. Dorsal surface with dark purplish pigmentation extending from cephalothorax to pleotelson; antennule article 1 about 2.8 times (female) and 3.5 times (male) longer than wide, terminal article with two to four (female) and four or five (male) aesthetascs; left mandible with lacinia mobilis reduced, peg-like and acutely pointed, right mandible with lacinia mobilis reduced to thorn; pereopod 1 coxa produced anteriorly into bulge with six setae; pleopod basal article with six setae on outer margin, one seta on inner margin, endopod with three setae on inner margin; uropod with six articles in mature individuals; sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFABFFC7FF32FC6FFFBD3517.taxon	description	Description. FEMALE Body (Fig. 28). Length to 3.5 mm; preserved specimens with dark purplish pigmentation extending from cephalothorax to pleotelson and on chelipeds, pereopods, antenna and articles 1 and 3 of antennule. Cephalothorax rounded and narrowing anteriorly in dorsal view, longer than wide. Pereon occupies about 57 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonites 2 and 3 similar, almost twice length of pereonite 1; pereonites 4, 5 and 6 similar, nearly twice length of pereonite 3. Pleonites together one-fifth as long as body; pleonites 1, 2 and 3 decreasing in length and width, each about five-sixths length of preceding segment; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson similar length to pleonite 2; posterior margin with pair of short setae central between pair of longer setae, three or four setae anterior to articulation with uropod, long simple seta on lateral margin. Antennule (Fig. 28). Total length extends three-fifths length of cephalothorax, with article 1 about 2.8 times longer than wide, with two setae one-third distance along outer margin and about four pappose setae and about five long simple setae distally; article 2 about one-third length of article 1, about 1.5 times longer than wide, with two or three pappose setae and about six simple setae distally; article 3 length almost twice width, about two-third length of article 2, with one or two pappose setae and about four simple setae distally; article 4 greatly reduced and cap-shaped, with about ten long simple setae and two to four aesthetascs. Antenna (Fig. 28). Article 1 as long as wide, lacking setae; article 2 twice length of article 1, length about 1.5 times width, with two small setae midway on outer margin and two setae distally; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with five long distal setae; article 5 four-fifths length of article 4, with about four simple setae and pappose seta distally; article 6 length similar to width, with about six long setae; seventh article reduced to small terminal cap with about ten long setae. Mouthparts (Fig. 29). Labrum with setulose fringe. Left mandible with lacinia mobilis reduced, peg-like and acutely pointed, with thorn at base, pars incisiva smooth and acute, pars molaris broad and corrugated; right mandible with lacinia mobilis reduced to bifurcated thorn, pars incisiva with broad bifurcated apex, pars molaris broad and corrugated. Labium with inner lobe setulose; outer lobe setulose on distal margin, with pointed terminal process and with very fine spines projecting from proximal lateral margin. Maxillule endite with eight large terminal spiniform setae, setulose on outer margin near base of spines; palp with eight long setae. Maxilliped coxa and basis not joined medially; coxa with two or three long proximo-medial setae; basis with fine marginal spines and a distal pair of simple setae; endite with fine spines on margin, two small spiniform setae distal near medial margin, three small spiniform setae medial on distal margin, and two circumplumose setae near medio-distal margin that are about one-quarter length of simple setae on inner margin of palp; palp with four articles, article 1 as long as wide with simple seta distal on outer margin and fine marginal spines, article 2 slightly longer than article 1 with single seta distal on outer margin, six to eight very long setae extending distally in a row from midway along inner margin, article 3 considerably smaller than article 2, fringed with about ten long setae along inner margin, article 4 similar in length to article 3 but two-thirds width, with a long seta distal on outer margin, a long terminal seta, and two adjacent rows of about five setae distal on inner margin. Epignath with terminal circumplumose seta and fringe of fine setules. Cheliped (Fig. 28). Basis longer than wide with one distal seta near ventral margin and one seta adjacent to articulation with merus; merus triangular with two setae two-thirds distance along ventral margin; carpus slightly longer than basis, longer than wide, with five setae distal near ventral margin, three distal dorsal setae and one seta one-third distance along dorsal margin; propodus with five or six setae ascending in size along ventral margin, about seven long setae extending as comb along inner margin of fixed finger to dorsal margin of dactylus when dactylus closed, and group of two or three setae plus large pappose seta near articulation with dactylus; dactylus with row of about nine very short setae along ventral margin, unguis short and solid, about one-fifth total length of dactylus. Pereopod 1 (Fig. 30). Coxa produced anteriorly into pronounced bulge with six setae; basis length approximately four times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus length similar to merus and carpus together, with about six setae near distal ventral margin and two setae near distal dorsal margin; unguis two-thirds length of dactylus. Pereopods 2 and 3 (Fig. 30). Similar; basis width one-quarter length, length slightly less than merus, carpus and propodus together; merus two-fifths length of basis, with one short spiniform setae and two to four simple setae distal on ventral margin and one simple seta distal on dorsal margin; carpus two-thirds length of merus, about eight serrated spiniform setae along distal margin with dorsal spiniform seta largest; propodus 1.5 times length of carpus; unguis half length of dactylus. Pereopods 4 and 5 (Fig. 30). Similar; basis width about one-third length; merus with a pair of large spiniform setae and two or three simple seta distal on ventral margin; carpus with two adjacent rows of about five serrated spiniform setae around distal margin; propodus 1.5 times length of merus, with about three setae distal near ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of about five flattened setae. Pereopod 6 (Fig. 30). Basis width about one-third length; merus with a pair of large spiniform setae and two or three simple seta distal on ventral margin and two or three simple setae dorsal near distal margin; carpus with parallel rows of about six spiniform setae around distal margin; propodus with distal comb-like row of about twelve flattened denticulate setae and dorso-distal group of two long simple setae and pappose seta; dactylus with lateral comb-like rows of about six flattened setae. Pleopods 1 – 3 (Fig. 30). Similar; basal article length similar to width, with six plumose setae along outer margin and one plumose seta on inner margin; exopod with about 30 plumose setae along outer margin; endopod with three plumose setae on inner margin, large terminal circumplumose seta and about 16 plumose setae along outer margin. Uropod (Fig. 30). Six articles, fewer on immature animals; basal article length about four times width, with about six distal simple setae; articles 2, 3, 4 and 5 similar in length, with about four distal simple setae and one or two pappose seta; terminal article length slightly less than preceding article, with about six long terminal simple setae and a pappose seta. MALE. Similar to female, other than Antennule (Fig. 28). Total length extends four-fifths length of cephalothorax; article 1 about 3.5 times longer than wide; article 4 with four or five projecting aesthetascs. Cheliped (Fig. 28). All articles proportionately wider than in female; basis and carpus length similar to width; dactylus with unguis about one-eighth total length of dactylus.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFABFFC7FF32FC6FFFBD3517.taxon	etymology	Etymology. Named after Hugh Kirkman in recognition of his contribution to marine conservation and studies of seagrass communities in Western Australia.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFABFFC7FF32FC6FFFBD3517.taxon	distribution	Distribution. Southwestern Australia, from Dongara to Perth, WA. 0 – 5 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFABFFC7FF32FC6FFFBD3517.taxon	discussion	Remarks. Zeuxo kirkmani can be distinguished from other tanaids by the combination of characters outlined in the diagnosis, and the presence of six setae on the coxa of pereopod 1, a greater number than for other known Australian species of Zeuxo. Its dark purplish coloration, which extends fully across the dorsal surface, is also unique among known tanaids, allowing this species to be identified without dissection.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFACFFBAFF32FB08FAD437D7.taxon	description	(Figs 31 – 33)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFACFFBAFF32FB08FAD437D7.taxon	materials_examined	Material examined. Holotype. Female (NMV J 56151), 4.5 mm, Georges Bay, Tas, 2 m depth, Heterozostera nigricaulis washings, John Moverley, 3 Oct 1995. Paratype. One male (NMV J 56152), holotype location.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFACFFBAFF32FB08FAD437D7.taxon	diagnosis	Diagnosis. With characters of genus. Dorsal surface with tan mottled pigmentation extending from cephalothorax to pleotelson; antennule article 1 about 2.8 times (female) and nearly four times (male) longer than wide, terminal article with three or four (female) and five (male) aesthetascs; left mandible with lacinia mobilis reduced, peg-like and acutely pointed, right mandible with lacinia mobilis reduced to serrated thorn; pereopod 1 coxa produced anteriorly into pronounced bulge with three to five setae; basal article with about nine setae on outer margin, one seta on inner margin, endopod with five or six setae on inner margin; uropod with seven articles in mature individuals; sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFACFFBAFF32FB08FAD437D7.taxon	description	Description. FEMALE Body (Fig. 31). Length to 5 mm; preserved specimens with tan mottled pigmentation extending from cephalothorax to pleotelson and on chelipeds, pereopods, antenna and articles 1 and 3 of antennule. Cephalothorax rounded and narrowing anteriorly in dorsal view, with slight medial concavity, slightly longer than wide, and slightly less than one-fifth body length. Pereon occupies about 56 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonite 2 almost twice length of pereonite 1; pereonite 3 slightly longer than pereonite 2 and five-sixths width; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 slightly shorter than pereonite 5. Pleonites together one-fifth as long as body; pleonites 1, 2 and 3 decreasing in length and width, each about four-fifths length of preceding segment; pleonites 4 and 5 similar, together slightly longer than pleonite 3. Pleotelson length similar to pleonite 1; posterior margin with pair of short setae central between pair of long setae, three or four setae anterior to articulation with uropod, long simple seta posterior on lateral margin. Antennule (Fig. 31). Total length approximately four-fifths length of cephalothorax, with article 1 about 2.8 times longer than wide, with three pappose setae one-third distance along outer margin, one simple seta halfway along outer margin, and two or three pappose setae and about five long simple setae distally; article 2 about two-fifths length of article 1, about twice as long as wide, with about three pappose setae and about six simple setae distally; article 3 length just over twice width, about two-third length of article 2, with two or three pappose setae and about four simple setae distally; article 4 greatly reduced and cap-shaped, with about ten long simple setae and three or four aesthetascs. Antenna (Fig. 31). Article 1 as long as wide, lacking setae; article 2 twice length of article 1, length about twice width, with small setae midway on inner and outer margins and two setae distally; article 3 half length of article 2, with distal seta; article 4 twice length of article 3, with about ten long distal setae; article 5 threequarters length of article 4, with about three simple setae and two pappose setae distally; article 6 length similar to width, with about six long setae; seventh article reduced to small terminal cap with about eight long setae. Mouthparts (Fig. 32). Labrum with setulose fringe. Left mandible with lacinia mobilis reduced, peg-like and acutely-pointed, with small thorn at base, pars incisiva smooth and acute, pars molaris broad and corrugated; right mandible with lacinia mobilis reduced to serrated thorn with spiniform seta at base, pars incisiva with three-lobed apex, pars molaris broad and corrugated. Labium with inner lobe setulose; outer lobe setulose on distal margin, with ovate terminal process and very fine spines projecting from lateral margins. Maxillule endite with eight large terminal spiniform setae, setulose on outer margin near base of spines; palp with eight long setae. Maxilliped coxa and basis not joined medially; coxa with two proximo-medial setae; basis lacking fine marginal setules or spines, with two distal setae and single medial seta; endite with two small spiniform setae distal near medial margin, two longer spiniform setae medial on distal margin and two circumplumose setae near distal margin that are about half length of long simple setae on inner margin of palp; palp with four articles, article 1 as long as wide with simple seta distal on outer margin, article 2 slightly longer than article 1 with single seta distal on outer margin, about twelve very long setae extending distally in a row from midway along inner margin to outer margin, and three long distal plumose setae, article 3 considerably smaller than article 2, fringed with about ten long setae along inner margin, article 4 shorter than article 3 and about half width, with a long seta distal on outer margin, a long terminal seta, and two adjacent rows of about five setae distal on inner margin. Epignath with terminal circumplumose seta and fringe of fine setules. Cheliped (Fig. 31). Basis longer than wide with one distal seta near ventral margin and one seta adjacent to articulation with merus; merus triangular with four setae three-quarters distance along ventral margin and three medial setae; carpus similar in length to basis, longer than wide, with three setae distal near ventral margin, three distal dorsal setae and one seta one-third distance along dorsal margin; propodus with about six setae ascending in size midway along ventral margin, about seven long setae extending as comb along inner margin of fixed finger to above dorsal dactylus margin when dactylus closed, and group of three or four setae near articulation with dactylus; dactylus with row of about twelve very short setae along ventral margin, unguis short and solid, about one-fifth total length of dactylus. Pereopod 1 (Fig. 33). Coxa produced anteriorly into pronounced bulge with three to five setae; basis length approximately five times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus length similar to merus and carpus together, with about five seta near distal margin, two setae two-thirds distance along dorsal margin and pappose seta two-thirds distance along ventral margin; unguis half length of dactylus. Pereopods 2 and 3 (Fig. 33). Similar; basis width one-third length, length slightly less than merus, carpus and propodus together; merus half length of basis, with one short spiniform seta and about four simple setae distal on ventral margin and one simple seta distal on dorsal margin; carpus two-thirds length of merus, about nine serrated spiniform setae along distal margin with dorsal spiniform seta largest; propodus 1.5 times length of carpus; unguis half length of dactylus. Pereopods 4 and 5 (Fig. 33). Similar; basis width about one-third length; merus with a pair of large spiniform setae and about two simple setae distal on ventral margin, about two simple setae distal on dorsal margin; carpus with two adjacent rows of five or six serrated spiniform setae around distal margin; propodus 1.5 times length of merus, with about five setae on ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of five or six flattened setae. Pereopod 6 (Fig. 33). Basis width about one-third length; merus with a pair of large spiniform setae and about two simple setae distal on ventral margin, about two simple setae distal on dorsal margin; carpus with parallel rows of five or six spiniform setae around distal margin; propodus with distal comb-like row of about 10 flattened denticulate setae and dorso-distal group of about five long denticulate setae with long simple seta and pappose seta; dactylus with lateral comb-like rows of about five setae. Pleopods 1 – 3 (Fig. 33). Similar; basal article length similar to width, with about nine plumose setae along outer margin and one plumose seta on inner margin; exopod with about 30 plumose setae along outer margin; endopod with five or six plumose seta on inner margin, large terminal circumplumose seta and about 22 plumose setae along outer margin. Uropod (Fig. 33). Seven articles, fewer on immature animals; basal article length about 2.5 times width, with about five distal simple setae; article 2 one-quarter length of article 1, lacking setae (apparently recently subdivided in figured specimen); article 3 similar length to article 2, with about six distal setae; articles 4, 5 and 6 similar other than diminishing in length, with about six distal setae including pappose seta; terminal article length slightly less than preceding article, with about eight long terminal simple setae and pappose seta. MALE. Similar to female, other than Antennule (Fig. 31). Total length slightly greater than length of cephalothorax, with article 1 about four times longer than wide; article 4 with five terminal aesthetascs. Cheliped (Fig. 31). All articles proportionately wider than in female; basis and carpus length similar to width; dactylus with unguis about one-tenth total length of dactylus.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFACFFBAFF32FB08FAD437D7.taxon	etymology	Etymology. Named in memory of Mary O’Doherty in recognition of her contribution to conservation in Tasmania.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFACFFBAFF32FB08FAD437D7.taxon	distribution	Distribution. Southeastern Tasmania.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFACFFBAFF32FB08FAD437D7.taxon	discussion	Remarks. Zeuxo odohertyae possesses nine setae on the outer margin of the pleopod basal article, considerably more than other known Australian species of Zeuxo, which have six or less. The species also differs from others in the combination of characters described in diagnosis. All specimens so far found have been living in seagrass beds.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFD1FFB1FF32F8C5FA543697.taxon	description	(Figs 34 – 36)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFD1FFB1FF32F8C5FA543697.taxon	materials_examined	Material examined. Holotype. Male (NMV J 56153), 1.7 mm, Bowen Island Passage, Jervis Bay, NSW, (35 º 07 ’ S 150 º 47 ’ E), 1 m depth, macrophyte washings, 29 Sep 1999. Paratypes. One male, one juvenile (NMV J 56154). Holotype location.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFD1FFB1FF32F8C5FA543697.taxon	diagnosis	Diagnosis. With characters of genus. Dorsal surface with mottled pigmentation confined to cephalothorax, with darkest coloration in mid region; antennule article 1 about three times longer than wide in males, ter- minal article with three or four aesthetascs in male; left mandible with lacinia mobilis broad and tooth-like, with a digitate outer margin, right mandible with lacinia mobilis peg-like with outer concavity; pereopod 1 coxa produced anteriorly into slight bulge with two setae; pleopod basal article with five setae on outer margin, one seta on inner margin, endopod with one seta on inner margin; uropod with four articles in mature individuals; sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFD1FFB1FF32F8C5FA543697.taxon	description	Description. FEMALE unknown. MALE. Body (Fig. 34). Length to 1.7 mm; preserved specimens with mottled pigmentation on cephalothorax, very dark in middorsal region and with lighter grey shading on postero-lateral lobes. Cephalothorax rounded and narrowing anteriorly in dorsal view, with slight lateral inflection; length similar to width and slightly more than one-fifth body length. Pereon occupies about 53 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonites 2 and 3 similar, almost twice length of pereonite 1; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 about three-quarters length of pereonite 5. Pleonites together slightly less than one-fifth as long as body; pleonites 1, 2 and 3 decreasing in length and width, each about four-fifths length of preceding segment; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson about length of pleonite 1; posterior margin with pair of short setae central between pair of long setae, two setae anterior to articulation with uropod, a long simple seta posterior on lateral margin. Antennule (Fig. 34). Total length about length of cephalothorax, with article 1 about three times longer than wide, with four setae one-third distance along article and three long simple setae distally; article 2 about one-third length of article 1, about 1.3 times longer than wide, with three setae distally; article 3 length about 1.5 times width, about two-third length of article 2, with about four simple setae distally; article 4 greatly reduced and cap-shaped, with about seven long simple setae and three or four aesthetascs. Antenna (Fig. 34). Article 1 as long as wide, lacking setae; article 2 1.5 times length of article 1, length about 1.5 times width, with two setae midway on outer margin, one seta midway on inner margin, and two distal setae; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, about 1.6 times as long as wide, with two distal setae; article 5 four-fifths length of article 4, with about four setae distally; article 6 length similar to width, with about six long simple setae; article 7 reduced to small terminal cap with about eight long setae. Mouthparts (Fig. 35). Labrum with setulose fringe. Left mandible with lacinia mobilis broad and tooth-like, with a digitate outer margin, lacking accessory seta, pars incisiva smooth with bifurcated tip, pars molaris broad and corrugated; right mandible lacinia mobilis peg-like with outer concavity, lacking accessory seta, pars incisiva smooth, pars molaris broad and corrugated. Labium with inner lobe setulose; outer lobe setulose on distal margin, with ovate terminal process and very fine spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae, setulose on outer margin near base of spines; palp with at least two long setae, possibly more than two but with extra setae detached on dissected specimen. Maxilliped coxa and basis not joined medially; coxa with two proximo-medial seta; basis with very fine marginal spines, with a short distal seta; endite setulose around distal margin, with two small spiniform setae distal near medial margin, two spiniform setae medial on distal margin and two circumplumose setae near distal margin that are about one-third length of long setae on inner margin of palp; palp with four articles, article 1 as long as wide with simple seta distal on outer margin and fine marginal teeth, article 2 slightly longer than article 1 with single seta distal on outer margin, three very long setae extending distally in a row from midway along inner margin and two long distal setae, article 3 similar in length to article 2, fringed with about nine long setae along inner margin, article 4 about two-thirds length of article 3 and two-thirds width, with a long seta distal on outer margin, a long terminal seta, and two adjacent rows of about five setae distal on inner margin. Epignath with terminal circumplumose seta and fringe of fine setules. Cheliped (Fig. 34). Basis about as long as wide with one distal seta near ventral margin and one seta adjacent to articulation with merus; merus triangular with two setae three-quarters distance along ventral margin; carpus longer than basis, longer than wide, with two setae distal near ventral margin, and two distal dorsal setae; propodus with three setae midway along ventral margin, about six long setae extending as comb along inner margin of fixed finger to above dorsal margin of dactylus when dactylus closed, and group of three or four setae near articulation with dactylus; dactylus with row of about six very short setae along ventral margin, unguis short and solid, about one-eighth total length of dactylus. Pereopod 1 (Fig. 36). Coxa produced anteriorly into slight bulge with two setae; basis length approximately five times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus length similar to merus and carpus together, with three distal setae and seta two-thirds distance along dorsal margin; unguis half length of dactylus. Pereopods 2 and 3 (Fig. 36). Similar; basis width one-quarter length, length slightly less than merus, carpus and propodus together; merus two-fifths length of basis, with short spiniform seta and simple seta distal on ventral margin; carpus two-thirds length of merus, with three serrated spiniform setae and simple seta near distal margin; propodus 1.5 times length of carpus; unguis half length of dactylus. Pereopods 4 and 5 (Fig. 36). Similar; basis width about one-third length; merus with a pair of large spiniform setae and simple seta distal on ventral margin; carpus with three spiniform setae and two simple setae near distal margin; propodus 1.5 times length of merus, with seta distal near ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of about six flattened setae. Pereopod 6 (Fig. 36). Basis width about one-third length; merus with a pair of large spiniform setae and simple seta distal on ventral margin and simper seta distal on dorsal margin; carpus with parallel rows of two and three spiniform setae around distal margin; propodus with distal comb-like row of about seven denticulate setae and two long simple setae and pappose seta dorso-distally; dactylus with lateral comb-like rows of about seven setae. Pleopods 1 – 3 (Fig. 36). Similar; basal article length similar to width, with five plumose setae along outer margin and one plumose seta on inner margin; exopod with about 25 plumose setae along outer margin; endopod with one plumose seta on inner margin, large terminal circumplumose seta and about 14 plumose setae along outer margin. Uropod (Fig. 36). Four articles; basal article with four distal setae; articles 2, 3 and 4 each about two-third length of preceding article, with five or six long distal setae.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFD1FFB1FF32F8C5FA543697.taxon	etymology	Etymology. Named in recognition of the contributions to conservation by brothers Nick and Peter Mooney.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFD1FFB1FF32F8C5FA543697.taxon	distribution	Distribution. Jervis Bay, NSW; 1 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFD1FFB1FF32F8C5FA543697.taxon	discussion	Remarks. Although only males of this species are presently known, it is readily distinguished from other known Australian Zeuxo species in possessing only four uropod articles and in the distinctive shape of the mandibles. The lacinia mobilis of the left mandible is well developed while that of the right mandible is narrow with an indented tip. Setation on pereopods of this species is also relatively sparse compared to other Zeuxo species. Zeuxo mooneyi is very close in appearance to the tropical Indo-West Pacific species Z. coralensis Sieg, with both species possessing four uropod articles, well-developed lacinia mobilis of left mandible, three or four aesthetascs on antennule, and two projecting setae on coxa of pereopod 1 (see Sieg 1980 b). These two species nevertheless differ greatly in body size, with examined male Z. mooneyi reaching only 1.7 mm length compared to the 3 mm length generally attained by Z. coralensis (to 4.8 mm for exceptional animals; Sieg 1980 b). The two species also differ in minor details of setation, including additional simple setae on most pereopod articles of Z. coralensis. Two other species in the Z. coralensis group — Zeuxo zorro Bamber and Zeuxo phytalensis Sieg — are discussed by Bamber (1997). Zeuxo mooneyi differs from these species in its relatively short distal seta on propodus of pereopods 2 and 3 (about half length of dactylus) and, additionally for the Hong Kong species Z. zorro, in possessing a large setose seta on the inner margin of the basal article of pleopods.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDBFFB7FF32FF55F874358F.taxon	description	(Figs 37 – 39)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDBFFB7FF32FF55F874358F.taxon	materials_examined	Material examined. Holotype. Female (NMV J 56145), 1.8 mm, Australian Institute of Marine Science Beach, Cape Cleveland, Qld, 1 m depth, Sargassum washings, 24 July 1996. Paratypes. Three males, four females (four ovigerous) (NMV J 56146), holotype location. Other material. Four males, twelve females, 16 juveniles, Purtaboi Island, Qld (17 º 56 ’ S, 146 º 08 ’ E), 2 m, macrophyte washings, 25 Sep 1999; five females, three juveniles, Mandalay Point, Qld (20 º 16 ’ S, 148 º 44 ’ E), 2 m, macrophyte washings, 26 Sep 1999; one female, Shoal Point, Qld (21 º 00 ’ S, 149 º 09 ’ E), 1 m, macrophyte washings, 27 Sep 1999; eleven females, one juvenile, Slade Point, Qld (21 º 05 ’ S, 149 º 13 ’’ E), 2 m, macrophyte washings, 27 Sep 1999; four females (2 ovigerous), 13 juveniles, Diggers Camp, NSW (29 ° 19 ’ S 153 ° 17 ’ E), 1 m depth, 29 Sep 1999; five females, three males, Cliff Head, WA, 0 - 3 m depth, 3 March 1986,	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDBFFB7FF32FF55F874358F.taxon	diagnosis	Diagnosis. With characters of genus. Dorsal surface with dark pigmented stripes behind eyes and near posterior margin of pereonites; antennule article 1 about 2.2 times (female) and just over 3.0 times (male) longer than wide, terminal article with three or four (female) and eight to ten (male) aesthetascs; left mandible with lacinia mobilis reduced and peg-like with roundly-indented tip, right mandible with lacinia mobilis lacking; pereopod 1 coxa produced anteriorly into slight bulge with one or two setae; pleopod basal article with four to seven setae on outer margin, one seta on inner margin, endopod with one seta on inner margin; uropod with six or seven articles in mature individuals; sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDBFFB7FF32FF55F874358F.taxon	description	Description. FEMALE Body (Fig. 37). Length to 2.9 mm; preserved specimens with fine spots coalescing as band of pigment along posterior border of pereonites, anterior of cephalothorax and, to a lesser extent, lateral margins. Cephalothorax trapezoidal in dorsal view; length similar to width and slightly more than one-fifth body length. Pereon occupies about 53 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonites 2 and 3 similar, almost twice length of pereonite 1; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 about three-quarters length of pereonite 5. Pleonites together one-fifth as long as body; pleonites 1, 2 and 3 decreasing in length and width, each about four-fifths length of preceding segment; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson 1.5 times length of pleonite 2; posterior margin with pair of short setae central between pair of long setae, three or four setae anterior to articulation with uropod, two or three long simple setae posterior on lateral margin. Antennule (Fig. 37). Total length extends three-fifths length of cephalothorax, with article 1 about 2.3 times longer than wide, with three pappose setae one-third distance along outer margin and two or three pappose setae and about three long simple setae distally; article 2 about one-third length of article 1, about 1.2 times longer than wide, with two or three pappose setae and about four simple setae distally; article 3 length similar to width, about two-third length of article 2, with two or three pappose setae and about four simple setae distally; article 4 greatly reduced and cap-shaped, with about ten long simple setae and three or four aesthetascs. Antenna (Fig. 37). Article 1 as long as wide, lacking setae; article 2 1.5 times length of article 1, length about 1.5 times width, with small seta midway on outer margin and two setae distally; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with four long distal setae; article 5 four-fifths length of article 4, with about three simple setae and three pappose setae distally; article 6 length similar to width, with about six long setae; seventh article reduced to small terminal cap with about eight long setae. Mouthparts (Fig. 38). Labrum with setulose fringe. Left mandible with lacinia mobilis reduced and peg-like with roundly-indented tip, lacking accessory seta, pars incisiva smooth with blunt apex, pars molaris broad and corrugated; right mandible with lacinia mobilis and accessory seta lacking, pars incisiva smooth and acute, pars molaris broad and corrugated. Labium with inner lobe setulose; outer lobe setulose on distal margin, with pointed terminal process and with very fine spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae, setulose on outer margin near base of spines; palp with four or five long setae. Maxilliped coxa and basis not joined medially; coxa with small proximo-medial seta; basis lacking fine marginal setae, with a short distal seta; endite setulose around distal margin, with two small spiniform setae distal near medial margin, two small spiniform setae medial on distal margin and two circumplumose setae near distal margin that are considerably shorter than setae on inner margin of palp; palp with four articles, article 1 as long as wide with simple seta distal on outer margin and fine marginal teeth, article 2 slightly longer than article 1 with single seta distal on outer margin, three to five very long setae extending distally in a row from midway along inner margin and three long distal setae, article 3 considerably smaller than article 2, fringed with about nine long setae along inner margin, article 4 similar in length to article 3 but two-thirds width, with a long seta distal on outer margin, a long terminal seta, and two adjacent rows of about five setae distal on inner margin. Epignath with terminal circumplumose seta and fringe of fine setules. Cheliped (Fig. 37). Basis longer than wide with one distal seta near ventral margin and one seta adjacent to articulation with merus; merus triangular with two setae two-thirds distance along ventral margin; carpus similar in length to basis, longer than wide, with three setae distal near ventral margin, three distal dorsal setae and one seta one-third distance along dorsal margin; propodus with five or six setae midway along ventral margin, about seven long setae extending as comb along inner margin of fixed finger to above dactylus when dactylus closed, and group of three or four setae plus large pappose seta near articulation with dactylus; dactylus with row of three or four very short setae along ventral margin, unguis short and solid, about one-fifth total length of dactylus. Pereopod 1 (Fig. 39). Coxa produced anteriorly into slight bulge with one or two setae; basis length approximately five times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus length similar to merus and carpus together, with three simple setae and pappose seta near distal margin, two setae two-thirds distance along dorsal margin and pappose seta two-thirds distance along ventral margin; unguis half length of dactylus. Pereopods 2 and 3 (Fig. 39). Similar; basis width one-quarter length, length slightly less than merus, carpus and propodus together; merus two-fifths length of basis, with two short spiniform setae and two simple setae distal on ventral margin and one simple seta distal on dorsal margin; carpus two-thirds length of merus, about six serrated spiniform setae along distal margin with dorsal spiniform seta largest; propodus 1.5 times length of carpus; unguis half length of dactylus. Pereopods 4 and 5 (Fig. 39). Similar; basis width about one-third length; merus with a pair of large spiniform setae and simple seta distal on ventral margin; carpus with two adjacent rows of about four serrated spiniform setae around distal margin; propodus 1.5 times length of merus, with seta distal near ventral margin and pappose seta plus two long simple setae distal near dorsal margin; unguis merged into claw-like dactylus, with comb-like lateral rows of about seven flattened setae. Pereopod 6 (Fig. 39). Basis width about one-third length; merus with a pair of large spiniform setae and simple seta distal on ventral margin and two simple setae distal on dorsal margin; carpus with parallel rows of four spiniform setae around distal margin; propodus with distal comb-like row of about seven flattened denticulate setae and dorso-distal group of two long simple setae and pappose seta; dactylus with lateral comb-like rows of about seven setae. Pleopods 1 – 3 (Fig. 39). Similar; basal article length similar to width, with four to seven plumose setae along outer margin and one plumose seta on inner margin; exopod with numerous plumose setae along outer margin; endopod with one plumose seta on inner margin, large terminal circumplumose seta and numerous plumose setae along outer margin. Uropod (Fig. 39). Six or seven articles, fewer on immature animals; basal article length about twice width, with about five distal simple setae; articles 2, 3, 4 and 5 similar in length, with two to six distal setae including pappose seta; terminal article length slightly less than preceding article, with numerous very long terminal setae. MALE. Similar to female, other than Body (Fig. 37). Cephalothorax almost triangular in dorsal view. Antennule (Fig. 37). Total length extends five-sixths length of cephalothorax, with article 1 just over three times longer than wide; article 4 with eight to ten terminal aesthetascs. Cheliped (Fig. 37). All articles proportionately wider than in female; basis and carpus length similar to width; dactylus with unguis about one-tenth total length of dactylus.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDBFFB7FF32FF55F874358F.taxon	etymology	Etymology. Named in recognition of contributions to tropical marine conservation and ecology by Garry Russ.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDBFFB7FF32FF55F874358F.taxon	distribution	Distribution. Northern Australia, from Dongara, WA, to Coffs Harbour, NSW. 0 – 3 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDBFFB7FF32FF55F874358F.taxon	discussion	Remarks. Morphological and setal characters in Zeuxo russi are largely similar to those in the Hawaiian and Gambier Island species Zeuxo seurati (Nobili 1906), as described by Miller (1940) and Sieg (1980 b); however, female Z. russi possess three or four rather than two aesthetascs on antennules, and lack the small thorn on the lacinia mobilis of left mandible. Differences in setation between Z. russi and Z. seurati include fewer distal setae on antennule articles, five rather than four long terminal setae on maxilla palp, five rather than three setae on ventral margin of fixed finger, and two rather than one spinous setae on merus of pereopods 2 and 3. Most mature Z. russi possess six uropod articles; however, an occasional mature specimen examined from both Cliff Head and Cape Cleveland possessed seven articles. Setation differs in minor details between specimens of Z. russi collected at different sites across northern Australia. For example, the number of setae on the outer margin of the basal article of pleopods varied from four to seven on animals studied at Cliff Head, and five to seven for Cape Cleveland animals. Zeuxo russi possesses a characteristic pigmentation pattern, which includes a dark mask behind the eyes and dark stippled stripes posterior on the dorsal surface of pereonites. The species occurs abundantly in shallow algal habitats around tropical and subtropical Australian coasts, and is particularly prevalent in association with Sargassum plants growing near low tide mark.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDCFFAAFF32FA85F8BB3687.taxon	description	(Figs 40 – 42)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDCFFAAFF32FA85F8BB3687.taxon	diagnosis	Diagnosis. With characters of genus. Dorsal surface with light mottled pink pigmentation; antennule article 1 about 2.3 times longer than wide, terminal article with eight aesthetascs; left mandible with lacinia mobilis reduced and peg-like, right mandible with lacinia mobilis reduced to thorn; pereopod 1 coxa produced anteriorly into pronounced digitate bulge with four or five associated setae; pleopod basal article with eight setae on outer margin, two setae on inner margin, endopod with six plumose setae on inner margin; uropod with six articles in mature individuals. Sexes similar.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDCFFAAFF32FA85F8BB3687.taxon	materials_examined	Material examined. Holotype. Male (NMV J 56137), 4.4 mm, Cape Jaffa, SA (36 ° 50.646 ’ S 139 ° 41.360 ’ E), 16 m depth, within gastropod shells attached to macroalga, 13 Mar 1996. Paratypes. Five males, two females, one adult not removed from gastropod shell, five indeterminate animals (NMV J 56138), holotype location.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDCFFAAFF32FA85F8BB3687.taxon	description	Description. FEMALE. Body (Fig. 40). Large, length to 5.4 mm; preserved specimens with light mottled pink pigmentation extending most prominently on cephalothorax, propodus of chelipeds, antennae and articles 1 and 3 of antennules. Cephalothorax rounded and narrowing anteriorly in dorsal view, with slight medial inflection, length slightly less than width and about one-fifth body length. Pereon occupies about 48 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonite 2 slightly shorter then pereonite 3 but otherwise similar, almost twice length of pereonite 1; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 about three-quarters length of pereonite 5. Pleonites together one-fifth as long as body; pleonites 1, 2 and 3 decreasing slightly in length and width, each about four-fifths length of preceding segment; pleonites 4 and 5 together as long as pleonite 3. Pleotelson length similar to pleonite 2; posterior margin with pair of short setae central between pair of longer setae, three or four setae anterior to articulation with uropod, two or three long setae dorso-laterally. Antennule (Fig. 40). Article 1 about 2.3 times longer than wide, with small pappose setae and simple setae along lateral margin and numerous simple and pappose setae distally; article 2 about two-fifths length of article 1, with numerous simple and pappose setae distally; article 3 about two-third length of article 2, with about five setae distally; article 4 greatly reduced and cap-shaped, with numerous long setae and eight aesthetascs. Antenna (Fig. 40). Article 1 as long as wide, lacking setae; article 2 slightly longer than wide, about 1.5 times length of article 1, with two small setae on lateral margin and two setae distally; article 3 half length of article 2, lacking setae; article 4 twice length of article 3, with about eight long simple setae and pappose seta distally; article 5 three-quarters length of article 4, with five or six simple setae and three or four pappose setae distally; article 6 length similar to width, with several long setae; seventh article reduced to small terminal cap with numerous long setae. Mouthparts (Fig. 41). Labrum distally carpeted by fine setules. Left mandible with lacinia mobilis peg-like and possessing spiniform seta at base, pars incisiva smooth and acute, pars molaris broad and corrugated; right mandible with lacinia mobilis reduced to thorn with spiniform seta, pars incisiva smooth, rounded and slightly bifurcated, pars molaris broad and corrugated. Labium with inner and outer lobes covered by fine setae near distal margins, outer lobe with small terminal process and with very fine spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae and cluster of fine setae on outer margin near base of spines; palp with five long setae. Maxilliped coxa and basis not joined medially; basis with three or four long setae distally; endite with two small spiniform setae medially, two or three spiniform setae medio-distally and two pappose setae distally; palp with four articles, article 1 slightly longer than wide with three long setae distally on outer margin, article 2 slightly longer than article 1 with three setae distal on outer margin, six or seven very long setae extending distally in a row from midway along inner margin to outer margin and two long setae distally, article 3 smaller than article 2 and fringed with two rows of six to eight long setae along inner margin, article 4 slightly shorter than article 3 and half width, with a long seta distally on outer margin, and two adjacent rows of four to six setae distally on inner margin. Epignath with relatively small terminal circumplumose seta and fringed by fine setules. Cheliped (Fig. 40). Basis slightly longer than wide with two setae near distal ventral margin; merus triangular with about six setae three-quarters distance along ventral margin and three setae central; carpus similar in length to basis, with five setae distal on ventral margin, four distal dorsal setae and single seta midway along dorsal margin; propodus similar in length to carpus, with large terminal spiniform seta, about seven setae midway along ventral margin increasing in size in distal direction, about 12 setae along dorsal margin of fixed finger and five simple setae and long pappose seta near articulation with dactylus; dactylus with row of very short setae along ventral margin, unguis short and solid, about one-fifth total length of dactylus. Pereopod 1 (Fig. 42). Coxa produced anteriorly into pronounced digitate bulge with four or five associated setae; basis length approximately four times width; merus about one-quarter length of basis; carpus slightly longer than merus; propodus length similar to merus and carpus together, with row of eight setae near distal ventral margin, pappose seta two-thirds distance along dorsal margin and long distal dorsal seta; unguis half length of dactylus. Pereopods 2 and 3 (Fig. 42). Similar, basis length approximately three times width, length less than merus, carpus and propodus together; merus two-fifths length of basis, with short spiniform distal ventral seta, four simple adjacent setae, and simple distal dorsal seta; carpus two-thirds length of merus, eight to ten ser- rated spiniform setae along distal margin with dorsal spiniform seta largest; propodus slightly longer than carpus; unguis more than half length of dactylus. Pereopods 4 and 5 (Fig. 42). Similar; basis length double width; merus with two distal ventral spiniform setae; carpus with two adjacent rows of five and seven serrated spiniform setae around distal margin; propodus length similar to carpus, with about five long simple setae and pappose seta on distal margin; unguis merged into claw-like dactylus, with lateral comb-like rows of about six flattened setae that project across the ventral margin. Pereopod 6 (Fig. 42). Basis length 2.5 times width; merus with two distal ventral spiniform setae and about five simple setae; carpus with two adjacent rows of five and seven spiniform setae; propodus with distal comb-like row of about twelve flattened denticulate setae and more dorsal group of about six longer denticulate setae; dactylus with lateral comb-like row of about eight flattened setae that project well across the ventral margin. Pleopods 1 – 3 (Fig. 42). Similar; basal article with eight plumose setae along outer margin and two plumose seta on inner margin; exopod with numerous plumose setae along outer margin; endopod with six plumose setae along inner margin, large terminal circumplumose seta and numerous plumose setae along outer margin. Uropod (Fig. 40). Six articles; basal article length slightly twice width, with two distal groups of three setae; articles 2, 3, 4 and 6 length about half length of article 1, each with distal pappose seta and simple setae that increase in number in distal direction; article 5 length 1.5 times that of adjacent articles. MALE. Similar to female.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDCFFAAFF32FA85F8BB3687.taxon	etymology	Etymology. Named in honour of Scoresby Shepherd for contributions to South Australian marine science and conservation.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDCFFAAFF32FA85F8BB3687.taxon	distribution	Distribution. Only known from the type locality off Cape Jaffa, SA. 16 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFDCFFAAFF32FA85F8BB3687.taxon	discussion	Remarks. Assignment of this tanaid to genus is complicated by an overlap in characters used to distinguish the three genera (Anatanais, Zeuxo and Zeuxoides) of the tribe Anatanaini of Sieg (1980 b), a grouping to which Zeuxo shepherdi belongs. Zeuxo shepherdi differs from other species of Zeuxo in possessing numerous (eight) terminal aesthetascs on the antennules and greater setation on pleonites, from species of Zeuxoides in possessing an elongate terminal uropod article, and also from both these genera in lacking sexual dimorphism. The extent of sexual dimorphism within Zeuxo is, however, variable, ranging from strong to barely present, while the maximum number of antennule aesthetascs and number of pleonite setae for known Zeuxo species approaches that seen in Z. shepherdi; consequently Z. shepherdi is assigned to Zeuxo, but with an expanded generic diagnosis. Zeuxo shepherdi differs from species of Anatanais in its strongly digitate coxa of pereopod 1, presence of numerous terminal aesthetascs on the antennules, two rather than one setae on inner margin of pleopod basis, and six rather than two plumose setae on the inner margin of the pleopod endopod. Sieg (1980 b) also regards a relatively short antennule first article (i. e. approximately twice second article length) as an important characteristic of Anatanais. The ratio of first to second antennule article length is about 2.5 in Z. shepherdi, greater than in Anatanais, similar to Zeuxoides, and less than in Zeuxo. Regardless of assignation to Zeuxo, Z. shepherdi is most similar in general morphology to the New Zealand species Anatanais novaezelandiae amongst known taxa, as figured by Sieg (1980 b). Characters shared between these species include reduced lacinia mobilis of right mandible (albeit more reduced in Z. shepherdi than A. novaezelandiae), robust antennule, maxillule palp with four or five long setae, six segmented uropod, numerous setae on outer margin of basal article of pleopods, lack of sexual dimorphism, and strongly produced lobe on coxa of pereopod 1 (see Sieg 1980 b). Zeuxo shepherdi sits inside the aperture of small gastropod shells within a hole encircled by cemented sand grains, a similar habit to that shown by species of the apseudomorph tanaidacean genus Pagurapseudes. The shells themselves are bonded to macroalgae or sessile invertebrates.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFC6FFADFF32FF55FADC3089.taxon	diagnosis	Diagnosis. Five pleonites present plus pleotelson. Antennule with four articles, first article over twice length of second article, terminal article with two to five aesthetascs. Antenna with six articles, article 2 longer than wide. Maxillule endite with eight large terminal spiniform setae, palp with at least five long setae. Labium outer lobe with small terminal process. Pereopod 1 coxa lacking or with small anterior bulge. Pleopod 1 and 2 basis with one plumose seta on inner margin and five setae on outer margin, endopod inner margin with one plumose seta; pleopod 3 reduced compared to pleopods 1 and 2. Uropod with four of five articles. Strongly sexually dimorphic.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFC6FFA0FF32FC65F84A36F7.taxon	description	(Figs 43 – 45)	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFC6FFA0FF32FC65F84A36F7.taxon	materials_examined	Material examined. Holotype. Male (NMV J 56155), 2.3 mm, Port Hobart, Tas, pylon scrapings collected by Aquenal Pty Ltd during introduced pest surveys, 21 Feb 2002. Paratypes. Three males (NMV J 56156), holotype location.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFC6FFA0FF32FC65F84A36F7.taxon	diagnosis	Diagnosis. With characters of genus. Dorsal surface with fine dark spots coalescing as patches of pigment, particularly behind eye and on postero-lateral lobes of cephalothorax; antennule article 1 about five times longer than wide in male, terminal article with five aesthetascs in male; left mandible with large toothlike lacinia mobilis with digitate outer margin, right mandible with lacinia mobilis present as peg-like structure; cheliped greatly expanded in male, with dactylus narrow, elongate and curved; pereopod 1 coxa produced anteriorly into slight bulge with one seta; pleopods 1 and 2 similar, basal article with five setae on outer margin; pleopod 3 with only three setae on outer margin; uropod with six or seven articles in mature individuals.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFC6FFA0FF32FC65F84A36F7.taxon	description	Description. FEMALE unknown MALE. Body (Fig. 43). Length to 2.4 mm; preserved specimens with fine spots coalescing as patches of pigment, particularly behind eye and on postero-lateral lobes of cephalothorax and towards the posterior on the dorsal surface of pereonites 4 – 6. Cephalothorax pear-shaped in dorsal view, length slightly greater than width, about one-quarter body length. Pereon occupies about 53 % of total length; pereonites with several setae along anterio-dorsal and lateral margins; pereonite 1 length about one-fifth width; pereonites 2 and 3 similar, almost twice length of pereonite 1; pereonites 4 and 5 similar, about 1.5 times length of pereonite 3; pereonite 6 about three-quarters length of pereonite 5. Pleonites together one-sixth as long as body; pleonites 1, 2 and 3 decreasing in length and width, each about four-fifths length of preceding segment; pleonites 4 and 5 similar, together as long as pleonite 3. Pleotelson about length of pleonite 1; posterior margin with pair of short setae central between pair of long setae, three setae anterior to articulation with uropod, three setae ventro-laterally. Antennule (Fig. 43). Total length about 1.3 times length of cephalothorax, with article 1 about five times longer than wide, with three pappose setae one-fifth distance and simple seta one-third distance along outer margin, and several pappose and long simple setae distally; article 2 about one-third length of article 1, about 1.7 times longer than wide, with about seven setae distally; article 3 length about three time width; article 4 greatly reduced and cap-shaped, with numerous long setae and five aesthetascs. Antenna (Fig. 43). Six articles; article 2 length three times width, with two distal setae; article 3 half length of article 2, lacking setae; article 4 length 2.5 times that of article 3, with three long distal setae; article 5 two-third length of article 4, with five or six simple and pappose setae distally; article 6 length 1.5 times width, with numerous long setae. Mouthparts (Fig. 44). Labrum with setulose fringe. Left mandible with large tooth-like lacinia mobilis with digitate outer margin, large denticulate seta at base, pars incisiva with indented outer margin, pars molaris broad and corrugated; right mandible with lacinia mobilis present as peg-like structure, denticulate seta at base, pars incisiva smooth and acute, pars molaris broad and corrugated .. Labium with inner lobe setulose; outer lobe setulose on distal margin, with pointed terminal process and with very fine spines projecting from proximal lateral margins. Maxillule endite with eight large terminal spiniform setae, setulose on outer margin near base of spines; palp with five long setae. Maxilliped coxa and basis not joined medially; coxa with two proximo-medial setae; basis with fine marginal setules, with a short distal seta; endite setulose around margin, with two small spiniform setae distal near medial margin, two small spiniform setae medial on distal margin and two circumplumose setae near distal margin that are about one third length of long setae on inner margin of palp; palp with four articles, article 1 as long as wide with simple seta distal on outer margin and fine marginal setules, article 2 slightly longer than article 1 with single seta distal on outer margin, four or five very long setae extending distally in a row from midway along inner margin and two long distal plumose setae, article 3 two-thirds length of article 2, fringed with about nine long setae along inner margin, article 4 similar in length to article 3 but two-thirds width, with a long seta distal on outer margin, a long terminal seta, and two adjacent rows of about five setae distal on inner margin. Epignath with terminal circumplumose seta and fringe of fine setules. Cheliped (Fig. 43). Basis longer than wide with one distal seta near ventral margin and one seta adjacent to dorsal articulation with merus; merus triangular with three setae two-thirds distance along ventral margin; carpus similar in length to basis, slightly wider than long, with three setae distal near ventral margin and group of about three setae distal on dorsal margin; propodus nearly twice length of carpus, width nearly twice length, fixed finger elongate and gradually declining in width, with large terminal spiniform seta, about five setae midway along ventral margin, about eight setae near terminal seta along dorsal margin of fixed finger and group of four setae plus a lateral seta near articulation with dactylus; dactylus smooth, curved, elongate and narrow, lacking row of small setae along ventral margin, unguis short and solid, about one eighth total length of dactylus. Pereopod 1 (Fig. 45). Coxa produced anteriorly into slight bulge with one seta; basis length approximately five times width; merus about one-quarter length of basis; carpus 1.5 times length of merus; propodus length similar to merus and carpus together, with thee distal setae near; unguis two-fifths length of dactylus. Pereopods 2 and 3 (Fig. 45). Similar; basis width one-quarter length, length slightly less than merus, carpus and propodus together; merus two-fifths length of basis, with short spiniform seta and two simple setae distal on ventral margin and one plumose seta distal on dorsal margin; carpus two-thirds length of merus, with about six serrated spiniform setae near distal margin and small spiniform setae evenly-spaced along ventral margin; propodus 1.5 times length of carpus, with about three simple setae and seven very small spiniform setae evenly-distributed along ventral margin; unguis half length of dactylus. Pereopods 4 and 5 (Fig. 45). Similar; basis width about one-third length; merus with a pair of large spiniform setae and simple seta distal on ventral margin; carpus with two adjacent rows of two and three serrated spiniform setae near distal margin; propodus slightly longer than merus, with about seven very small spini- form setae evenly-distributed along ventral margin, two simple setae distal near ventral margin and pappose seta plus paired long simple seta distal near dorsal margin; unguis merged into claw-like dactylus, with comblike lateral rows of about seven flattened setae. Pereopod 6 (Fig. 45). Basis width about one-third length; merus with a pair of large spiniform setae and simple seta distal on ventral margin and two simple setae distal near dorsal margin; carpus with four spiniform setae and two long plumose setae on distal margin; propodus with distal comb-like row of about seven flattened denticulate setae and dorso-distal group of paired long simple setae and pappose seta; dactylus with lateral comb-like rows of about eight setae. Pleopods 1 – 2 (Fig. 45). Similar, with five plumose setae along outer margin and one plumose seta on inner margin, exopod with about 28 plumose setae along outer margin, endopod with one plumose seta on inner margin, large terminal circumplumose seta and about 14 plumose setae along outer margin. Pleopod 3 (Fig. 45). Basal article with three plumose setae along outer margin and one plumose seta on inner margin, exopod with about 24 plumose setae along outer margin, endopod with one plumose seta on inner margin, large terminal circumplumose seta and about ten plumose setae along outer margin. Uropod (Fig. 45). Five articles; basal article length about twice width, with about five distal setae; article 2 two-thirds length of basal article, lacking setae; 3, 4 and 5 similar in length, each about two-third width of preceding article, each with about five simple seta and plumose seta.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFC6FFA0FF32FC65F84A36F7.taxon	etymology	Etymology. Named in recognition of contributions to crustacean taxonomy and ecology in Tasmania and Victoria by John Moverley, including macrobenthic surveys of the Hobart region.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFC6FFA0FF32FC65F84A36F7.taxon	distribution	Distribution. Port Hobart, Tasmania. 0 – 3 m depth.	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
676CB04DFFC6FFA0FF32FC65F84A36F7.taxon	discussion	Remarks. Only males of this species are presently known. By analogy to related species, females are likely to be similar morphologically to males other than in more normal shape of cephalothorax, cheliped, antennule, antenna and pleopod 3. In the distinctive shape of the cheliped, antennules and antennae, and reduction in setation of pleopod 3, the species shows affinity to male individuals in the genera Pancoloides, Hexapleomera, Pancolus and Monoditotanais (see Sieg, 1980 b). Pancoloides moverleyi nevertheless differs from species of Monoditotanais and Pancolus in possessing five rather than four or three pleonites plus pleotelson, and from species of Zeuxo and Zeuxoides in the strong sexual dimorphism of males and reduction in pleopod 3. This species could reasonably be assigned to either Pancoloides or Hexapleomera. In terms of shape of cheliped, antenna, antennule and mandibles, normal final uropod article, and relatively minor reduction in setation of pleopod 3, it shows greatest similarity with Hexapleomera; however, in the shape and proportions of pereonites, pleonites and pereopods, including number of spiniform setae on pereopods 2 and 3, and number of setae on the basal pleopod article, the species appears more closely allied with Pancoloides. This species is here assigned to Pancoloides on the arguably trivial grounds that it is free-living and clearly sits outside the Hexapleomera complex as currently recognised, which is adapted for a pelagic life attached to sea turtles. Pancoloides moverleyi shares most morphological features of Pancoloides litoralis (Vanhöffen), the only known species in the genus Pancoloides (Sieg, 1980 b). It does, however, differ from that subantarctic species in possessing a normal rather than reduced terminal uropod article (thereby also differing from species of Pancolus and Zeuxoides), a uropod with five rather than four segments, relatively minor reduction in setation of pleopod 3, more elongate second article of antenna, and male cheliped fixed finger that is less elongate. Pancoloides moverleyi may represent an introduction to south-eastern Tasmania that has not been reported so far from its native range. The species has not been recorded from undisturbed habitats in Australia, only from pylon scrapings in the Port of Hobart, where a number of other species that are likely-introduced were also recorded (e. g. the amphipods Corophium acherusicum, Corophium insidiosum, Caprella acanthogaster and Jassa marmorata) (Aquenal 2002).	en	Edgar, Graham J. (2008): Shallow water Tanaidae (Crustacea: Tanaidacea) of Australia. Zootaxa 1836 (1): 1-92, DOI: 10.11646/zootaxa.1836.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1836.1.1
