taxonID	type	description	language	source
1F1687ABFFA45D3BFF5FD2191E250EDB.taxon	materials_examined	Material examined. 1 ♂, 1 ov. ♀, Heron Island reef, north-eastern side, stn HI 09 – 064 C, 23.42996 ° S 151.95050 ° E, 4 – 5 m, 20 November 2009, coll. N. L. Bruce & K. Schnabel, QM W 31913. 1 ♀,. Heron Island reef, north-eastern side, stn HI 09 – 076 C, 23 ° 25.990 ’ S 151 ° 55.601 ’ E, 10 m, 22 November 2009, dead coral heads, coll. N. Bruce & K. Schnabel, QM W 31920.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA45D3BFF5FD2191E250EDB.taxon	diagnosis	Diagnosis. Rostrum very short, unarmed, second pereiopod merus with ventral margin with several small stout acute teeth, ischium with strong acute distoventral tooth, ventral margin with several small stout acute teeth; ambulatory dactyl corpus with large bicuspid distoventral tooth, cusps acute, ventral margin with several small acute denticles.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA45D3BFF5FD2191E250EDB.taxon	biology_ecology	Host. Not recorded.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA45D3BFF5FD2191E250EDB.taxon	distribution	Distribution. Previously reported from Heron Island by Bruce (1969). Otherwise known only from the Ryukyu Islands (Fujino & Miyake, 1969; Bruce, 1985).	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA45D3BFF5FD2191E250EDB.taxon	discussion	Remarks. The pair of specimens are in good condition, intact, the single specimen is badly damaged, but with both second pereiopods. The specimens were collected from dead coral heads, presumably from associated encrusting sponges, and were found with numerous Saron, porcellanids,? Microprosthema sp and other species.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D3BFF5FD7DE1E0B0B68.taxon	materials_examined	Material examined. 1 ♂, 1 ov. ♀, CLs 9.3, 8.5, Heron Island reef, north-eastern side, HI 09 - 076 F, 23 ° 25.990 ’ S 151 ° 55.601 ’ E, 13 m, 22 November 2009, coll. N. L. Bruce & K. Schnabel, QM W 31440.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D3BFF5FD7DE1E0B0B68.taxon	diagnosis	Diagnosis. Rostrum robust, dentition. 6 / 0, first dorsal rostral tooth stout, blunt, transversely compressed; carapace with supraorbital tubercles; first pereiopods without dactylar setal tuft; minor second pereiopod dactyl elongate, with numerous small acute teeth along distal half of cutting edge; dactyl of third pereiopod simply biunguiculate, with distal accessory tooth only; dorsal telson spines large, at about 0.25 and 0.65 of telson length.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D3BFF5FD7DE1E0B0B68.taxon	description	Description. The specimens agree well with previous descriptions. The male specimen lacks most of the rostrum and the female has a rostral dentition of 6 / 0. The male major second pereiopod chela is 1.8 times the CL and the female 1.65 times, both present on the right side.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D3BFF5FD7DE1E0B0B68.taxon	biology_ecology	Host. Botrylloides leachi (Savignyi, 1816), Styelidae [Ascidiacea], det. P. Kott, a new host record. Previously reported in association with Hypodistoma deerratum (Sluiter, 1885) by Bruce (1981) and Fransen (2006).	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D3BFF5FD7DE1E0B0B68.taxon	distribution	Distribution. First recorded from the Gulf of Carpentaria and previously reported from Heron Island by Bruce (1981); also known from Western Australia (Bruce, 1992), the Philippines (Bruce, 2005) and Papua New Guinea (Fransen, 2006).	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D3BFF5FD7DE1E0B0B68.taxon	discussion	Remarks. Both specimens are in good condition, intact. Periclimenaeus pachydentatus has been recorded from Papua New Guinea by Fransen (2006). His male specimen differs slightly from the holotype female in the presence of small denticles of the ventral margin of the third pereiopod dactylar corpus which are lacking in that specimen (Bruce, 2005). A small but very distinct inferior orbital angle is also present, which is quite lacking in the holotype and in the present specimens.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D33FF5FD26D1C260E1C.taxon	description	(Figs 1 – 5)	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D33FF5FD26D1C260E1C.taxon	materials_examined	Material examined. 1 ♂, holotype, dissected, Heron Island reef, north-eastern side, HI 09 - 76 A, 23 ° 29.990 ’ S 151 ° 55.601 ’ E, 12 m, 22 November 2009, dead Acropora, coll. N. L. Bruce & K. Schnabel, QM W 31919.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D33FF5FD26D1C260E1C.taxon	diagnosis	Diagnosis. Rostrum slender, dentition 5 / 0, reaching to end of antennular peduncle, without supraorbital spines or tubercles, first abdominal tergite without median anterodorsal lobe, scaphocerite with small distolateral tooth, slightly exceeding lamella, incisor process of mandible well developed, simply acutely pointed, first pereiopod slender, chela greater than half carpus length, fingers forcipulate, second pereiopod chelae with palms smooth, major with large molar process, cutting edges entire, merus minutely tuberculate ventrally, minor chela with dactyl elongate, exceeding tip of fixed finger, cutting edge mainly entire, with low tooth proximally covered with minute acute tubercles, fixed finger longitudinally deeply grooved, with rounded tooth proximally, covered with minute acute tubercles; third pereiopod dactyl biunguiculate, corpus entire, without basal armament, propod with paired distoventral and 1 distal ventral spine, telson with dorsal spines well developed, at 0.3 and 0.6 of telson length, uropod with exopod laterally with distal tooth and spine only.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D33FF5FD26D1C260E1C.taxon	description	Description. Male. A small sized slender species of typical Periclimenaeus form. Rostrum (Fig. 1 B), tip missing, about 0.48 of CL, slender, reaching to end of proximal segment of antennular peduncle, dorsal carina feebly developed, with 5 acute slender teeth, first four of increasing size distally, first tooth anterior to posterior orbital margin, preterminal tooth smaller, teeth separated by long slender simple median setae, ventral margin feebly concave, unarmed, non-setose. Carapace (Fig. 1 A) smooth, glabrous, without supraorbital spines or tubercles, post-orbital or hepatic spines, posterior orbital carina feebly developed, continuous with well developed slender marginal antennal spine, inferior orbital angle completely obsolete, pterygostomial angle not produced, obtusely rounded. Abdominal segments smooth, glabrous, first without median anterior dorsal lobe, third tergite not posteriorly produced, sixth segment about 0.35 of CL, subequal to length of fifth segment length, 1.1 times longer than deep, posterolateral angle acute, posteroventral angle larger, acute, pleura all posteroventrally rounded. Telson (Fig. 1 G) 0.77 of CL, about twice as long as anterior width, lateral margins straight, convergent, with 2 pairs of short, subequal dorsal spines, about 0.07 of telson length, at 0.3 and 0.6 of telson length, posterior margin about 0.5 of anterior width, broadly rounded, without median point, lateral posterior spines (Fig. 1 H) slightly smaller than dorsal spines, intermediate spines well developed, robust, 0.22 of telson length, submedial spines 0.83 of submedial spine length, with sparse simple setae. Antennule (Fig. 1 C) with proximal segment of peduncle twice as long as central width, medial margin straight, non-setose, without ventromedial tooth, lateral margin concave, laterally produced proximally, distolateral angle (Fig. 5 A) without tooth, blunt, stylocerite acute, reaching to 0.4 of segment length, statocyst poorly defined, with granular statolith; intermediate and distal segments subcylindrical, intermediate 0.7 of distal segment length, combined length 0.7 of proximal segment length; upper flagellum (Fig. 5 B) biramous, upper ramus with 3 proximal segments fused, with 1 free segment, 8 groups of aesthetascs, lower ramus slender, incomplete. Antenna (Fig. 1 D) with basicerite laterally unarmed, carpocerite slender, subcylindrical, 6.75 times longer than distal width, extending well beyond scaphocerite; scaphocerite (Fig. 1 E) about 2.5 times longer than distal width, distally rounded, lateral margin straight with small distolateral tooth at about 0.9 of lateral margin length, reaching to level of anterior margin of lamella, flagellum slender, incomplete. Eye (Fig. 1 F) with globular cornea, about 0.2 of CL, well pigmented, without accessory pigment spot, eyestalk about as wide as long. Ophthalmic somite, epistome, labrum, and paragnath, without special features. Mandible (Fig. 2 A) with corpus normal, without palp; incisor process well developed, tapering to single acute distal tooth, medial margin distally concave, otherwise straight; molar process (Fig. 5 EF) subcylindrical, distally oblique, with small anterior marginal tooth, with similar dorsal marginal tooth and larger posterior tooth, with marginal row of simple setae, anterior margin longitudinally carinate (Fig. 5 C). Maxillula (Fig. 2 B) with palp (Fig. 5 G) stout, very feebly bilobed, ventral lobe with short sinuous ventral spinule; upper lacinia (Fig. 5 H) broad, distally transversely truncate, with single row of eight simple marginal spines, fully ankylosed with lacinia, with two slender submarginal spines; lower lacinia bluntly rounded distally, with numerous slender simple spiniform setae. Maxilla (Fig. 2 C) with slender tapering palp, with single short plumose seta proximally on lateral margin; basal endite short, broad, distally bilobed, lobes short, rounded with six slender simple setae; coxal endite obsolete, medial margin convex, non-setose; scaphognathite normal, 2.7 times longer than broad, anterior lobe 1.2 times longer than basal width, distally rounded with medial margin feebly concave, posterior lobe half length of anterior lobe. First maxilliped (Fig. 2 D) with stout non-setiferous palp, slightly exceeding distal margin of caridean lobe; basal and coxal endites fully fused, basal portion with sparse long feebly setulose setae, medial margin straight, coxal portion convex, with three slender simple marginal setae; exopod well developed, flagellum slender, with four plumose terminal setae, caridean lobe broad, about twice as long as wide; epipod large, cordiform. Second maxilliped (Fig. 2 E) of normal form, dactylar segment about 3.2 times longer than distal width, with numerous long slender finely setulose spines along medial margin; propodal segment with disto-medial margin broadly rounded with several slender simple spines; carpus with disto-medial angle acute; merus and ischio-basis without special features, exopod well developed, flagellum slender with four plumose terminal setae; coxa slightly produced medially, non-setose, epipod simple, twice as long as broad, without podobranch Third maxilliped (Fig. 2 F) short, robust, reaching to about middle of carpocerite, ischio-merus and basis completely fused, combined segment flattened, about 2.4 times longer than proximal width, tapering slightly distally, lateral margin straight, non-setose, medial margin with coxal portion feebly convex, ischio-meral region feebly concave, both with sparse slender simple setae; carpus about 0.6 of antepenultimate segment length 3.0 times longer than wide, medial margin with numerous long slender finely setulose setae, terminal segment about 0.8 of preterminal segment length, 4.0 times longer than basal width, tapering distally, with numerous long slender densely setulose spines medially, exopod as on second maxilliped; coxa medially excavate, with well developed low rounded lateral plate, without arthrobranch. Fourth thoracic sternite (Fig. 4 H) with semicircular perpendicular transverse carina; posterior sternites unarmed. First pereiopod (Fig. 4 A) slender, chela (Fig. 4 B) about 0.5 of CL, palm compressed, twice as long as deep centrally, with small groups of slender cleaning setae proximo-ventrally, fingers slender, tapering strongly distally with small bidentate tips, dactyl about 5.5 times longer than proximal depth, cutting edge lateral, feebly laminar distally, entire, fixed finger similar; carpus 1.1 times chela length, 5.6 times longer than distal width, tapering proximally, with slender cleaning setae distoventrally; merus 1.17 times chela length, 1.05 times carpus length, 5.5 times longer than central width; ischium, 0.95 of chela length, 4.0 times longer than distal width, tapering proximally; basis about 5.5 of chela length; coxa robust, without distoventral process. Major second pereiopod (left) (Fig. 3 A) with chela (Fig. 3 B) massive, 3.0 times CL, palm oval in section, about 2.2 times longer than central depth, very finely granulate ventrally, (virtually invisible but palpable), tapering slightly distally, sparsely setose, fingers (Fig. 3 CD) about 0.33 of palm length, in-curved, dactyl robust, compressed, about twice as long as deep with strongly convex dorsal margin, tip bluntly hooked, cutting edge with large molar process centrally, distal third concave, blunt, entire, fixed finger about 1.2 times longer than proximal depth, with bluntly hooked tip, cutting edge with well developed fossa on central portion, medial margin with large acute tooth and smaller proximal tooth, lateral margin proximally broadly expanded, feebly convex, distal cutting edge blunt, entire; carpus about 0.28 of palm length, as wide distally as long, tapering strongly proximally, moderately excavate distally, unarmed; merus about 9.4 of palm length, twice as long as central width, slightly bowed and centrally swollen, ventral margin with 10 small denticles; ischium about 0.29 of palm length, 1.8 times longer than distal width, tapering strongly proximally, ventral margin with 6 minute denticles; basis and coxa stout, without special features. Minor second pereiopod (right) (Fig. 3 D) chela (Fig. 3 E) about half of major chela length, 1.5 times CL, palm smooth, oval in section, sparsely setose, 2.75 times longer than proximal depth, tapering slightly distally, dactyl (Fig. 3 FG) about 0.45 of palm length, extending well beyond tip of fixed finger, 3.75 times longer than basal width, curved, with stout blunt tip, distal half feebly concave, sharp, entire, proximal fourth concave, second fourth cutting edges thickened, covered with minute acute denticles, fixed finger (Fig. 3 FG) about 0.9 of dactylus length, 2.0 times longer than proximal depth, with small blunt feebly hooked tip, cutting edge deeply longitudinally grooved except near tip, medial margin with low rounded thickening proximally, covered with minute acute denticles (Fig. 3 H), lateral margin similar but at higher level and with larger tuberculate thickening proximally; proximal segments similar to major chela but smaller, ventral margins without denticles. Third pereiopod (Fig. 4 C) reaching to about distal end of antennular peduncle; with propod about 0.53 of CL, dactyl (Fig. 4 E) compressed, biunguiculate, about 0.17 of propod length, unguis short, 0.25 of corpus length, clearly demarcated, 1.4 times longer than basal width, slender, simple, very acute, corpus twice as long as deep, dorsal margin feebly convex, ventral margin with stout, strongly curved terminally blunt distal accessory tooth, larger than unguis, ventral margin feebly convex with 3 small low blunt denticles, with pairs of long simple sensory setae medially and laterally; propod (Fig. 4 D) 4.4 times longer than deep, sparsely setose, tapering distally, distal width about half of proximal, with 2 robust distoventral spines, lateral spine about 6.5 times longer than basal width, 0.95 of distal propod width, medial spine about 0.55 of lateral spine length, 1 preterminal distal ventral spine, slightly smaller than distal medial spine; carpus subequal to propod length, 3.0 times longer than central width, unarmed; merus about 1.15 times propod length, 3.2 times longer than central width, unarmed; ischium 0.95 of propod length, 2.75 times longer than distal width, unarmed; basis and coxa robust, without special features. Fourth pereiopod similar to third, propod (Fig. 4 F) shorter, about 0.9 of third propod length. Fifth pereiopod generally similar to third and fourth pereiopods, propod (Fig. 4 G) 1.1 times longer than third propod length, 6.0 times longer than proximal width, with single smaller distoventral spine only, with numerous long setae over distal third of ventral margin. First pleopod (Fig. 5 I) with basipodite twice as long as broad; exopod 1.1 times basipodite length, 4.0 times longer than broad; endopod (Fig. 5 J) 2.43 of exopod length, 3.0 times longer than wide, distally rounded, lateral margin with 6 short plumose setae, medial margin without accessory lobe, with 12 slender simple spiniform setae, decreasing in size proximally. Second pleopod (Fig. 5 K) basipodite 2.3 times longer than broad, slightly longer than first basipodite length; exopod 1.1 times basipodite length; endopod 0.9 of exopod length, appendices (Fig. 5 L) at 0.4 of medial margin length, appendix masculina with corpus greatly reduced, subcylindrical, twice as long as wide, with single long slender simple terminal spine, 4.4 times length of corpus; appendix interna 3.2 times longer than interna corpus, with few cincinnuli. Uropod (Fig. 1 I) with protopodite posterolaterally rounded; rami broad, exopod 1.7 times longer than broad, lateral margin feebly convex, sparsely setose, with stout distolateral tooth (Fig. 5 M) with much longer spine medially; diaeresis obsolete; endopod about 1.2 times exopod length, 2.2 times longer than broad. Measurements (mms). Post-orbital carapace length, 2.0; carapace and rostrum, 3.4; total body length (approx.), 9.2; major chela, 6.1; minor chela, 3.2. Colouration. No data.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D33FF5FD26D1C260E1C.taxon	etymology	Etymology. From the locality of collection, Heron Island. Systematic position. Periclimenaeus heronensis sp. nov. most closely resembles P. matherae Bruce, 2005. The two species may be separated by the following characters: Rostral dentition 5 / 0 in P. heronensis (7 / 0 in P. matherae); supraorbital tubercles absent in P. heronensis (present in P. matherae); inferior orbital angle absent in P. heronensis (present in P. matherae); strong ventromedial tooth on proximal segment of antennular peduncle absent in P. heronensis (present in P. matherae); distolateral tooth on proximal segment of antennular peduncle absent in P. heronensis (present in P. matherae); carpocerite far exceeding scaphocerite in P. heronensis (only slightly in P. matherae; distolateral spine of scaphocerite at 0.9 of length in P. heronensis, almost reaching level of distal margin of lamella (at 0.68 in P. matherae, falling far short of distal margin of lamella); major second pereiopod dactyl with cutting edge entire in P. heronensis (denticulate in P. matherae); ambulatory dactyl with short slender acute dactyl, longer curved blunt distal accessory tooth in P. heronensis (much longer unguis in P. matherae, with acute curved accessory tooth); dorsal telson spines small in P. heronensis (larger in P. matherae). Periclimenaeus matherae is known only from Ashmore Reef, Western Australia.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D33FF5FD26D1C260E1C.taxon	biology_ecology	Host. Unknown, most probably a sponge.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFA55D33FF5FD26D1C260E1C.taxon	discussion	Remarks. Found in same collection with the specimen of P. arthrodactylus (Holthuis, 1952) reported by Bruce (2010). Specimen complete, except lacking right fourth and fifth pereiopods and left uropod. In the course of identification, Periclimenaeus usitatus Bruce was considered a possibility. This species is known only from the type material collected from 20 m off the island of Unguja, Zanzibar, from an unidentified sponge host, of which only an unillustrated preliminary description is available (Bruce, 1969). The male allotype, NHM 2010. 291 (Fig. 6), has been re-examined. A significant character was overlooked in the brief original description. The minor second pereiopod chela (Fig. 6 A) has the palm smooth, oval in section, about twice as long as deep. The dactyl is about 0.62 of the palm length, curved, about 4.2 times longer than basal width, with a slender curved tip and a concave entire sharp cutting edge. The fixed finger is about 2.3 times longer than basal width, with a stouter curved tip, the cutting edge is distinctly longitudinally grooved, medial margin at a lower level than the lateral and straight and entire. The lateral margin is also straight and armed throughout its length by minute acute uniform triangular denticles (Fig. 6 B). The allotype lacks the major second pereiopod. The holotype female (RMNH D. 253614) has also been re-examined by Dr Charles Fransen who advises that “ Indeed the fixed finger has this minute denticulation on the higher medial edge of the groove. It is not a single row of denticles however, but extends into the groove with obtuse denticles forming a granular longitudinal band. I also checked the major second chela, which has the same structure on the fixed finger. ” This arrangement appears to be without parallel in the genus Periclimenaeus. The third pereiopod has the dactylus (Fig. 6 D) compressed, about 0.16 of the propod length, twice as long as its basal width with the unguis distinctly demarcated, simple, slender, curved, about 3.0 times longer than the basal width: the corpus tapers distally and is about 4.2 times broader proximally than distally, with a slender perpendicular preterminal accessory tooth, ventral margin feebly concave and unarmed. The propod (Fig. 6 C) is about 3.75 times longer than proximal width and tapers distally, with 2 short distoventral spines, the longer lateral spine about half the distal propod width, the medial spine slightly shorter, with a similar distal ventral spine, and 3 shorter spines on the proximal half of the ventral margin.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFAD5D35FF5FD3951BC60AEE.taxon	description	(Figs 7 – 11)	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFAD5D35FF5FD3951BC60AEE.taxon	materials_examined	Material examined. 1 ov. ♀, dissected, Heron Island reef, north-eastern side, stn HI 09 - 076 C, 23 ° 25.990 ’ S 151 ° 55.601 ’ E, 10 m, 22 November 2009, dead coral heads, coll. N. L. Bruce & K. Schnabel, QM W 31437.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFAD5D35FF5FD3951BC60AEE.taxon	diagnosis	Diagnosis. Rostral dentition 5 / 0, supraorbital spines or tubercles absent, scaphocerite with small distolateral tooth, subequal to lamella margin, major second pereiopod chela smooth, dactyl with finely denticulate cutting edge distally, ambulatory dactyl biunguiculate with acute basal tooth.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFAD5D35FF5FD3951BC60AEE.taxon	description	Description. Ovigerous female. A small sized slender species of typical Periclimenes form. Rostrum (Fig. 7 B) extending to end of intermediate segment of antennular peduncle, slender acute straight slightly depressed, about 0.46 of CL, dorsal carina with 5 well developed acute teeth, all anterior to the orbital margin, with numerous long plumose interdental setae, ventral margin feebly convex, unarmed, non-setose. Carapace (Fig. 7 A) smooth, glabrous, without supraorbital spines or tubercles, without distinct postorbital carina, inferior orbital angle obsolete, antennal spine well developed, marginal, paraorbital, pterygostomial angle not produced, obtusely rounded. Abdominal segments normal, sixth segment 1.05 times fifth segment length, 1.5 times longer than deep, posterolateral angle small, acute, posteroventral angle large, acute, pleura broadly rounded. Telson (Fig. 7 H) about 0.66 of CL, 2.2 times longer than anterior width, lateral margins posteriorly convergent, posterior margin 0.5 of anterior width, rounded, without median point, with 2 pairs of well developed similar dorsal spines, 0.12 of telson length, at 0.25 and 0.57 of telson length, lateral posterior spines (Fig. 7 I) about 0.5 of dorsal spine length, sub-ventral, intermediate spines well developed, robust, 0.2 of telson length, submedian spines setulose, 0.95 of submedial spine length. Antennule (Fig. 7 C) with proximal segment of peduncle twice as long as central width, medial margin straight, non-setose, with robust ventromedial tooth (Fig. 7 D), lateral margin concave, laterally produced, distolateral angle (Fig. 11 A) with small acute tooth, stylocerite acute, reaching to 0.45 of segment length, statocyst distinct, with granular statolith; intermediate and distal segments subcylindrical, intermediate 0.7 of distal segment length, combined length 0.7 of proximal segment length; upper flagellum biramous, upper ramus with 5 proximal segments fused, with 1 free segment, about 12 groups of aesthetascs, lower ramus slender, with 19 segments. Antenna (Fig. 7 E) with basicerite laterally unarmed, carpocerite slender, subcylindrical, 5.6 times longer than distal width, extending well beyond scaphocerite; scaphocerite (Fig. 7 F) reaching to end of antennular peduncle, about 2.5 times longer than distal width, distally rounded, lateral margin straight with small distolateral tooth at about 0.85 of lateral margin length, not reaching to level of anterior margin of lamella, flagella incomplete Eye (Fig. 7 G) with globular cornea, about 0.16 of CL, well pigmented, without accessory pigment spot, eyestalk about 1.8 times wider than long. Ophthalmic somite, epistome, labrum (Fig. 8 A), and paragnath, without special features. Mandible (left) (Fig. 8 B) with corpus damaged, without palp, incisor process (Fig. 11 C) slender, obliquely truncate distally with 4 small similar acute teeth, molar process (Fig. 11 B) compressed, anteriorly carinate, tapering distally, without obvious teeth, fringed with short setae. Maxillula (Fig. 8 C) with palp (Fig. 11 D) feebly bilobed, ventral lobe with small distal tubercle with short simple spiniform seta; upper lacinia broad (Fig. 11 E), distally truncate with 9 stout simple spines, 5 central spines fully fused to lacinia, remaining spines articulated, surface with scattered spiniform setae and simple setae, lower lacinia tapering distally, blunt with numerous long sparsely setulose spiniform setae. Maxilla (Fig. 8 D) with simple tapering distally blunt non-setose palp, basal endites fused, rounded, with 11 slender simple marginal setae, coxal endite obsolete, margin convex, non-setose, scaphocerite well developed, about 3.0 times longer than broad, anterior lobe 1.25 times longer than broad, feebly concave medially, posterior lobe slender. First maxilliped (Fig. 8 E) with palp simple short, with single preterminal plumose seta medially, basal and coxal endites fully fused, broadly rounded distally, basal portion with medial margin straight, with numerous slender feebly setulose marginal setae, coxal region convex, with single seta, exopod with slender flagellum, setae missing, caridean lobe well developed, epipod sub-quadrate, feebly bilobed. Second maxilliped (Fig. 8 F) of normal form, dactylar segment about 3.2 times longer than distal width, with numerous long slender finely setulose spines along medial margin; propodal segment with disto-medial margin broadly rounded with several slender simple spines; carpus with disto-medial angle acute; merus and ischio-basis without special features, exopod well developed, flagellum slender, with terminal setae missing; coxa produced medially, rounded, with single short simple seta, epipod simple, twice as long as broad, without podobranch. Third maxilliped (Fig. 8 G) reaching to about end of basicerite, ischiomerus and basis semi-fused, ischiomerus broad, 1.75 times longer than proximal width, tapering slightly distally, medial margin feebly biconvex sparsely setose, lateral margin straight, sparsely setose; carpus 0.66 of ischiomeral length, subcylindrical, oval in section, 3.0 times longer than wide, sparsely setose medially; terminal segment 0.8 of carpal length, tapering distally, 4.0 times longer than basal width, with numerous slender finely setulose marginal and distal spines; coxa with medial margin convex, sparsely setose, exopod with slender flagellum with 2 terminal setae (2 missing?); coxa with long low lateral plate, possibly with rudimentary arthrobranch. Thoracic sternites, second to fifth unarmed, sixth with medial longitudinal carina, seventh and eighth unarmed. (As in P. zarenkovi Ď uriš, 1990, see below). First pereiopod (Fig. 9 A) normal, exceeding antennular peduncle by carpus and chela; chela (Fig. 9 BC) about 0.42 of CL, palm subcylindrical, oval in section, twice as long as proximal depth, tapering slightly distally, with sparse cleaning setae proximo-ventrally, fingers subequal to palm length, slender, broad, tips distally rounded, dactyl tridentate, fixed finger bidentate, opposing surfaces concave, lateral margins finely lamellate distally, entire; carpus subequal to chela length, 4.2 times longer than distal width, tapering slightly proximally, with long cleaning setae distoventrally; merus 1.2 times chela length, 5.5 times longer than central width, slightly swollen proximally; ischium 0.68 of chela length; basis and coxa without special features, coxa without distoventral process. Major second pereiopod (right) (Fig. 9 D) massive, chela about 1.5 times CL, palm smooth, glabrous, oval in section, about twice as long as maximal depth at 0.33 of length, fingers (Fig. 9 FG) about 0.35 of palm length, sparsely setose; dactylus compressed, 0.38 of palm length, dorsal margin convex, cutting edge with well developed molar process on second two fifths, distal two fifths slightly concave, finely denticulate, with about 24 small, fairly uniform teeth (Fig. 9 G), distally subacute, mainly subquadrate, possibly due to abrasion, tip stout, short, bluntly hooked; fixed finger about 0.33 of palm length, 1.4 times longer than basal width, cutting edge with well developed fossa, medial margin with low acute tooth proximally, ventral margin with rounded lobe, distal cutting edge blunt, entire, tip stout, short, bluntly hooked; carpus short, triangular, about 1.25 times longer than distal width, 0.35 of palm length, tapering strongly proximally, unarmed; merus 0.47 of palm length, twice as long as central depth, slightly swollen centrally, ventral margin with three small acute denticles on central third; ischium 0.36 of palm length, twice as long as distal width, ventral margin without denticles; basis and coxa robust, without special features. Minor second pereiopod missing. Third pereiopod (Fig. 10 A) exceeding antennular peduncle by propod and dactyl, with propod about 0.53 of CL; dactyl (Fig. 10 C) compressed, biunguiculate, about 0.17 of propod length, unguis clearly demarcated, tip missing, simple, curved, about 0.4 of corpus length, 1.7 times longer than basal width, corpus about 1.4 times longer than basal width, tapering, distal width about 0.38 of basal width, dorsal margin slightly convex, ventral margin with small acute distal accessory tooth (damaged), ventral margin straight, sharp, with rounded swelling proximally bearing stout acute tooth, with long sensory setae laterally; propod (Fig. 10 B) 4.3 times longer than proximal depth, sparsely setose, tapering distally, distal width 0.5 of proximal depth with pair of stout simple distoventral spines, lateral spine about 0.66 of dactyl length, medial spine shorter, with single preterminal ventral spine, 2 smaller ventral spines at 0.25 and 0.5 of propod length; carpus 0.33 of propod length, 3.0 times longer than central width, unarmed; merus about 1.2 times propod length, 3.6 times longer than central width, unarmed; ischium 0.8 of propod length, 3.3 times longer than distal width, unarmed; basis and coxa robust, without special features. Fourth pereiopod similar to third, more slender, dactyl (Fig. 10 EF) with unguis 2.6 times longer than basal width, 0.45 of corpus length, distal corpus with slender acute accessory tooth about 0.33 of unguis length, propod (Fig. 10 D) 0.78 of third propod length, 4.6 times longer than proximal width, spinulation as in third pereiopod; carpus, merus and ischium similar. Fifth pereiopods missing. Uropod (Fig. 7 J) with protopodite posterolaterally rounded; rami broad, exopod 2.1 times longer than broad, lateral margin feebly convex, sparsely setose, with stout distolateral tooth with much longer spine medially (Fig. 11 F); diaeresis obsolete; endopod about subequal to exopod length, 2.5 times longer than broad. Ova of normal pontoniine size, about 30. Measurements (mms). Post-orbital carapace length, 2.0; carapace and rostrum, 3.0; total body length (approx.), 9.7; major chela, 3.6; minor chela, missing; length of ovum, 0.5. Colouration. No data.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFAD5D35FF5FD3951BC60AEE.taxon	etymology	Etymology. The species name is derived from the name of the sponsoring organisers, CReefs, for the 2009 Heron Island Expedition. Systematic position. Without the minor second pereiopod the systematic position of this species cannot be fully assessed. Periclimenaeus creefi appears to most closely resemble P. orbitocarinatus Fransen, 2006, a species also only known from the holotype specimen which similarly lacks its minor second pereiopod. Both species have the dactyl of the major second pereiopod with a minutely denticulate distal cutting edge and the ambulatory dactyl of the third pereiopod with an acute basal process. They also have a scaphocerite with a small distolateral tooth that does not exceed the distal margin of the lamella, the first pereiopod chelae with slender fingers with small rounded multidentate tips. Periclimenaeus creefi can be readily distinguished from P. orbitocarinatus by the absence of a distinct postorbital carina. In addition, the rostrum is relatively longer with 5 dorsal teeth (vs 4 in P. orbitocarinatus), the proximal segment of the antennular peduncle has a strong ventromedial tooth (absent in P. orbitocarinatus), the major second pereiopod dactyl has about 24 small denticles (vs about 50 in P. orbitocarinatus), the third ambulatory dactyl has a well developed distal accessory tooth on the corpus (absent in P. orbitocarinatus), and much larger dorsal spines on the telson.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFAD5D35FF5FD3951BC60AEE.taxon	biology_ecology	Host. Not recorded, most probably from an ascidian.	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
1F1687ABFFAD5D35FF5FD3951BC60AEE.taxon	discussion	Remarks. The single specimen lacks the minor second pereiopod and has only the right third and fourth pereiopods. The median carina on the sixth thoracic sternite may be unusual or just overlooked in other Periclimenaeus spp. but a similar carina has been illustrated in P. zarenkovi by Ď uriš (1990).	en	Bruce, A. J. (2010): More pontoniine shrimps (Crustacea: Decapoda: Palaemonidae) from the CReefs 2009 Heron Island expedition. Zootaxa 2604 (1): 20-36, DOI: 10.11646/zootaxa.2541.1.3, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2541.1.3
