identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
0396CF176803FFFE1DD737D5FEEAFEEE.text	0396CF176803FFFE1DD737D5FEEAFEEE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Axiidae Huxley 1879	<div><p>Axiidae Huxley, 1879</p><p>Axiidae Huxley, 1879: 785 .— Poore &amp; Collins 2009: 222 (diagnosis, synonymy). Calocarididae Ortmann, 1891: 47 .</p><p>Eiconaxiidae Sakai &amp; Ohta, 2005: 69 .</p><p>Eiconaxiopsididae Sakai, 2011: 289 –291.</p><p>Remarks. The family Axiidae sensu lato was diagnosed by Sakai &amp; de Saint Laurent (1989), Poore (1994) and Poore &amp; Collins (2009). The last paper argued the synonymy of Calocarididae Ortmann, 1891 and Eiconaxiidae Sakai &amp; Ohta, 2005 based on cladistic and molecular analyses. Eiconaxius Spence Bate, 1888 was shown to share several characters with Platyaxius Sakai, 1994 making Eiconaxiidae hard to justify. Tsang et al. (2008) found Axiidae paraphyletic with respect to these two families, but based their finding on few taxa. Komai &amp; Tsuchida (2012) synonymised Eiconaxiopsis Sakai, 2011 with Eiconaxius and Eiconaxiopsididae Sakai, 2011 with Axiidae arguing that they are paraphyletic taxa. Unfortunately, they failed to realise that both were based in part on an observational error.</p></div>	https://treatment.plazi.org/id/0396CF176803FFFE1DD737D5FEEAFEEE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Poore, Gary C. B.	Poore, Gary C. B. (2017): Synonymy and problematic species of Eiconaxius Spence Bate, 1888, with descriptions of new species (Crustacea: Decapoda: Axiidea: Axiidae). Zootaxa 4231 (3): 364-376, DOI: 10.11646/zootaxa.4231.3.4
0396CF176802FFFD1DD730DDFA07FADC.text	0396CF176802FFFD1DD730DDFA07FADC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eiconaxius Spence Bate 1888	<div><p>Eiconaxius Spence Bate, 1888</p><p>Eiconaxius Spence Bate, 1888: 40 .— Stebbing 1893: 188 –189.—Sakai &amp; de Saint Laurent 1989: 15 –16.— Sakai &amp; Ohta 2005: 69 –70.— Poore &amp; Collins 2009: 255.— Sakai 2011: 268.</p><p>Iconaxiopsis Alcock, 1901: 193 .— Balss 1925: 210 –211 [type species: Eiconaxius kermadeci laccadivensis Alcock &amp; Anderson, 1894, subsequent designation by Borradaile (1903: 537)].</p><p>Axius (Iconaxiopsis) .— Borradaile 1903: 537.</p><p>Axius (Eiconaxius) .— Borradaile 1903: 537 –538.—De Man 1925b: 14.</p><p>Eiconaxiopsis Sakai, 2011: 290 [type species: Eiconaxiopsis heinrichi Sakai, 2011, by original designation].</p><p>Type species. Eiconaxius acutifrons Spence Bate, 1888 [subsequent designation by Stebbing (1893: 188)].</p><p>Diagnosis. Gonochoristic. Carapace smooth; cervical groove inconspicuous. Rostrum triangular, concave dorsally, not especially depressed below level of carapace, about twice as long as eyestalks, lateral margins smooth or denticulate, continuous with definite lateral carinae. Supraocular spines absent; lateral gastric carinae unarmed; submedian gastric carinae absent; median carina denticulate or smooth, not extending posteriorly over broad triangular midgastric region; postcervical carina absent. Pleon smooth, tergum and pleura continuous; pleuron 1 rounded, pleuron 2 acute or subacute, pleura 3–5 triangular, with or without anteroventral tooth. Eyestalk at most twice as long as cornea diameter; eye pigmented or not pigmented or weakly pigmented. Antenna, scaphocerite simple, straight, almost as long as article 4. Pleurobranchs present above pereopods 2–4; arthrobranchs well developed; epipods and podobranchs present, epipods fully developed on pereopods 1–4, podobranchs on 1–3. Maxilliped 3, exopod not clearly bent at base of flagellum. Pereopods 1 unequal. Major cheliped massive, palm swollen, fingers shorter than palm. Minor cheliped merus with smooth or denticulate lower margin; palm without single sharp tooth on lateral face proximal to base of fingers, with broadly-based tapering fixed finger; curved dactylus longer than palm upper margin; with setae only on fingers. Pereopods 3 and 4, dactyli ovate or spatulate, each with single row of marginal spiniform setae plus few–many supplementary lateral spiniform setae. Pereopod 5 dactylus spatulate, with oblique margin having single row of spiniform setae, with or without facial spiniform setae. Pleopods 2–5 exopod lanceolate, not laterally lobed, endopod with appendix interna. Pleopod 1 of male present or absent. Pleopod 2 of male with digitiform appendix masculina and appendix interna. Telson suboval, usually longer than wide; lateral margin serrate; posterior margin rounded or truncate, with or without median spine. Uropodal endopod oval, anterior margin serrate, distal margin curved, continuous with anterior and posterior margins (rarely lobed); exopod oval, anterior margin serrate, without transverse suture.</p><p>Remarks. Stebbing (1893) was the first to designate Eiconaxius acutifrons Spence Bate, 1888 as type species of Eiconaxius, not Borradaile (1903) as stated by Sakai &amp; de Saint Laurent (1989) and Sakai (2011). Eiconaxius acutifrons was described in detail by Komai &amp; Tsuchida (2012) who also provided a detailed synonymy listing misuses of the species name.</p><p>Alcock (1901) differentiated Iconaxiopsis from Eiconaxius (misspelled as Iconaxius) in the exopod of maxilliped 2 being much longer than the endopod (similar lengths in Eiconaxius), an arthrobranch, epipod and podobranch on maxilliped 2, and pleurobranchs on thoracomeres 5–7 (above pereopods 2–4) (none present in Eiconaxius). Borradaile (1903) repeated these characters to distinguish the two taxa as subgenera of Axius . De Man (1925b) synonymised the two on the grounds that the status of the arthrobranch on maxilliped 2 was unknown for most taxa and it could not be seen on the only species that he examined. Pleurobranchs are present above pereopods 2–4 and epipods present on maxilliped 2 on all species of Eiconaxius available for this study so the two genera can not be distinguished on these grounds.</p><p>Trybom (1904) misspelled Eiconaxius as Euconaxius and described Euconaxius coronatus and Euconaxius crassipes as new, both now Calocarides coronatus (Trybom, 1904), type species of that genus. Lagerberg’s (1908) use of Eiconaxius is in this sense.</p><p>Sakai (2011) separated his new species Eiconaxiopsis heinrichi from Eiconaxius consobrina (De Man, 1907) on the basis of two characters that he then used to justify a new genus: (1) dactyli of pereopods 3–4 are ‘simple, tapering distally, and pointed distally’ (versus ‘short, subspatulate in form, and spinulose on the ventral margin’); (2) the male pleopod 1 is a ‘bisegmented appendage’ (versus absent). He added two more characters to justify placing Eiconaxiopsis in its own family, Eiconaxiopsididae: (3) the carapace possesses a median carina ‘gradually broadening posteriorly’ (versus ‘with or without denticles, which is simple or bifurcate posteriorly’ in Eiconaxius); (4) the telson lacks a median spine (versus with a spine),</p><p>None of these characters is reliable at generic or family levels:</p><p>(1) As explained below, the dactyli of pereopods 3 and 4 of Eiconaxiopsis heinrichi are not as described and figured by Sakai (2011: fig. 56D). They have a single row of marginal spiniform setae with few supplementary lateral spiniform setae (Figs 1 i, j) as is the case in the type species (Komai &amp; Tsuchida 2012: fig. 2) and most species of Eiconaxius available for this study. This would seem to be how most species descriptions and illustrations could be interpreted. Eiconaxius agassizi (Bouvier, 1905), E. parvus Spence Bate, 1888 and E. vaubani sp. nov. are typical (Figs 1 a, b, 3c, d, 6b, c). Eiconaxius borradailei (Bouvier, 1905) (Figs 4 c, d) and E. sibogae (De Man, 1925a) (Figs 1 e, f) differ from all others for which detail is available in having multiple (maximum three) rows of spiniform setae in a tear-shaped marginal area on the dactyli of pereopods 3 and 4.</p><p>(2) The presence or absence of the male pleopod 1 is not explicitly stated for most described species of Eiconaxius . Most of those for which information is available, including the type species, lack a male pleopod 1 but my own observations confirm that males possess a pleopod 1 of one article in Eiconaxius borradailei, E. sibogae (Fig. 1 h) E. vaubani sp. nov. (Fig. 5 c) or of two articles in E. heinrichi (Fig. 1 k). Alcock (1901) described Iconaxiopsis as having ‘in the male ... appendages of the 1st [abdominal] somite ... uniramous’. Pleopod 1 is shown in illustrations of syntypes of both included species, of E. andamanensis Alcock, 1901 in the original paper and of E. laccadivensis (Alcock &amp; Anderson, 1894) in Alcock &amp; MacGilchrist (1905) . However, MacGilchrist (1905) commented that the male pleopod 1 was wanting in E. laccadivensis and well developed in E. andamanensis . Sakai (2011) included only E. heinrichi and E. sibogae in Eiconaxiopsis .</p><p>(3) The median carina is confined to the rostrum, meeting the gastric region posteriorly in all species; it varies only slightly. Sakai’s (2011: figs 56a, b, c) are misleading.</p><p>(4) The telson spine varies between individuals of the same species, as Sakai (2011: 295) himself acknowledged for E. sibogae .</p><p>Separation of a second genus from Eiconaxius on one or other of these characters is premature but both Iconaxiopsis Alcock, 1901 and Eiconaxiopsis Sakai, 2011 are potential available names.</p><p>Sakai (2011) included two problematic taxa in his catalogue of species of Eiconaxius . Each is discussed below.</p></div>	https://treatment.plazi.org/id/0396CF176802FFFD1DD730DDFA07FADC	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Poore, Gary C. B.	Poore, Gary C. B. (2017): Synonymy and problematic species of Eiconaxius Spence Bate, 1888, with descriptions of new species (Crustacea: Decapoda: Axiidea: Axiidae). Zootaxa 4231 (3): 364-376, DOI: 10.11646/zootaxa.4231.3.4
0396CF176801FFFD1DD73411FC57F876.text	0396CF176801FFFD1DD73411FC57F876.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eiconaxius albatrossae Kensley 1996	<div><p>Eiconaxius albatrossae Kensley, 1996</p><p>Axius acutifrons .— Faxon 1895: 103 –104, pl. 28 fig. 2.</p><p>Eiconaxius albatrossae Kensley, 1996: 475 –478, figs 4, 5.— Komai &amp; Tsuchida 2012: 28, 38. Eiconaxius faxoni Sakai, 2011: 279 .</p><p>Remarks. Eiconaxius faxoni Sakai, 2011 was based on 12 ‘types’ from two Albatross stations off the Pacific coast of Panama, identified as Axius acutifrons (= E. acutifrons) by Faxon (1895). Komai &amp; Tsuchida (2012) believed that the name E. faxoni is unavailable because it lacks explicit type designation (ICZN Articles 16.4 and 72.3) but this is not so—Sakai did specify the same 12 individuals in the MCZ designated as holotype and paratypes of E. albatrossae Kensley, 1996 as ‘Types’, effectively syntypes (ICZN Article 72.3.1). The absence of a diagnosis is overcome by reliance on Faxon’s (1895) description (ICZN Article 13.1.2). The synonymy of E. faxoni with E. albatrossae, recognised by Komai &amp; Tsuchida (2012) is ambiguous without a single type. It is resolved here by designation of the male from Albatross stn 3359 (MCZ 4568), the holotype of E. albatrossae, as lectotype of Eiconaxius faxoni Sakai, 2011, thereby making the species an objective synonym of E. albatrossae Kensley, 1996 .</p><p>Sakai (2011) listed Wicksten’s (1982) Californian record of Axius acutifrons in the synonymy of E. faxoni but her material belongs to E. baja Kensley, 1996 (Komai &amp; Tsuchida 2012) .</p></div>	https://treatment.plazi.org/id/0396CF176801FFFD1DD73411FC57F876	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Poore, Gary C. B.	Poore, Gary C. B. (2017): Synonymy and problematic species of Eiconaxius Spence Bate, 1888, with descriptions of new species (Crustacea: Decapoda: Axiidea: Axiidae). Zootaxa 4231 (3): 364-376, DOI: 10.11646/zootaxa.4231.3.4
0396CF176800FFFC1DD731D9FC7DFDA9.text	0396CF176800FFFC1DD731D9FC7DFDA9.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eiconaxius heinrichi (Sakai 2011) Sakai 2011	<div><p>Eiconaxius heinrichi (Sakai, 2011)</p><p>(Figs 1 i–l)</p><p>Iconaxiopsis consobrina .— Balss 1925: 211, fig. 15.</p><p>Eiconaxiopsis heinrichi Sakai, 2011: 291 –295, figs 55–57 (not fig. 56D).</p><p>Type material. Holotype: Indonesia, west coast of Sumatra, 677 m (Deutsche Tiefsee Expedition trawl stn 198), 2 Nov 1899, ZMB 19345 (male, 8.0 mm).</p><p>Remarks. Sakai based his new genus Eiconaxiopsis and his new family Eiconaxiopsididae partly on the unusual form of the dactylus of pereopod 3 that he illustrated and described as ‘tapering and pointed distally’ (Sakai 2011: 294, fig. 56D). Examination of the holotype revealed that pereopods 3 and 4 possess spatulate dactyli with a single marginal row of spiniform setae plus few on the lateral face as is typical of many species of Eiconaxius (Figs 1 i, j). Sakai’s illustration is of a pereopod from another animal, not in this genus. The species is one of only five, listed above, known to possess a male pleopod 1 (Fig. 1 k).</p></div>	https://treatment.plazi.org/id/0396CF176800FFFC1DD731D9FC7DFDA9	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Poore, Gary C. B.	Poore, Gary C. B. (2017): Synonymy and problematic species of Eiconaxius Spence Bate, 1888, with descriptions of new species (Crustacea: Decapoda: Axiidea: Axiidae). Zootaxa 4231 (3): 364-376, DOI: 10.11646/zootaxa.4231.3.4
0396CF176807FFFB1DD731D9FDBFFB68.text	0396CF176807FFFB1DD731D9FDBFFB68.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eiconaxius malaku	<div><p>Eiconaxius malaku sp. nov.</p><p>Axius (Eiconaxius) acutifrons . —De Man 1925b: 4, 15–16, 37–40, pl. 3 fig 5. Not Eiconaxius acutifrons Spence Bate, 1888 . Eiconaxius indonesicus Sakai, 2011: 280 –281.— Komai &amp; Tsuchida 2012: 38. Nomen nudum.</p><p>Type material. Holotype: Indonesia, SE coast of Great Kei I., 5°56.5'S, 132°47.7'E, 595 m ( Siboga stn 266), from hexactinellid sponge; grey mud with coral and stones (ZMA CRUS.D.202876, male, 7.6 mm—not examined).</p><p>Diagnosis. Rostrum 1.2 times as long as wide, with acute apex, lateral margins denticulate. Median gastric carina unarmed. Lateral gastric carina smooth, simple. Pereonite 6, posterior margin denticulate. Major cheliped palm, upper margin denticulate; lateral and mesial faces smooth; distolateral margin unornamented; fingers about half as long as upper margin of palm; fixed finger cutting edge with broad blade over proximal half, irregular beyond; dactylus cutting edge with basal tooth, distal convex blade. Minor cheliped, palm upper margin as long as greatest height, lateral and mesial faces smooth; distolateral margin with prominent triangular toothed lobe in gape; fixed finger cutting edge denticulate. Pereopods 3 and 4, dactyli spatulate, with row of marginal spiniform setae and few facial setae. Male pleopod 1 absent. Telson 1.6 times as long as wide, apex angular-truncate, with defined posterolateral corners.</p><p>Etymology. From the Indonesian province of Malaku where the Kei (or Kai) Islands are located (noun in apposition).</p><p>Remarks. Sakai (2011) based his diagnosis of Eiconaxius indonesicus on De Man’s (1925b) description and figures of a specimen identified as Axius (Eiconaxius) acutifrons . A holotype was designated but Sakai (2011) failed to state where it was lodged and thereby did not comply with ICZN Article 16.4.2. The holotype, type locality and the collection housing the holotype of a new taxon are specified above to overcome this issue.</p><p>De Man (1925b) described only the rostrum, telson, both chelipeds and pereopod 2 of the holotype. Sakai (2011) diagnosed E. acutifrons with three generic characters but nothing specific. His longer diagnosis of E. indonesicus was similarly largely generic. While saying that his new taxon was ‘clearly different’ he did not specify any characters that might separate the two species. Komai &amp; Tsuchida (2012) believed on the basis of De Man’s (1925b) and Sakai’s (2011) descriptions that this taxon differs from E. acutifrons with which it had been confused. They illustrated the lectotype of A. (E.) acutifrons, enumerated differences between the rostrums and cheliped dactyli of E. acutifrons and E. indonesicus . The diagnosis above is based on a suite of characters that will distinguish all species of the genus.</p></div>	https://treatment.plazi.org/id/0396CF176807FFFB1DD731D9FDBFFB68	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Poore, Gary C. B.	Poore, Gary C. B. (2017): Synonymy and problematic species of Eiconaxius Spence Bate, 1888, with descriptions of new species (Crustacea: Decapoda: Axiidea: Axiidae). Zootaxa 4231 (3): 364-376, DOI: 10.11646/zootaxa.4231.3.4
0396CF176807FFF81DD73445FB89F981.text	0396CF176807FFF81DD73445FB89F981.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eiconaxius parvus Spence Bate 1888	<div><p>Eiconaxius parvus Spence Bate, 1888</p><p>(Figs 2, 3)</p><p>Eiconaxius parvus Spence Bate, 1888: 44 –46, pl. 5 figs 4, 5.—Sakai &amp; de Saint Laurent 1989: 18.— Kensley 1996: 475.— Poore &amp; Collins 2009: 260, fig. 25.</p><p>Axius (Eiconaxius) parvus .— Borradaile, 1903: 538.—De Man, 1925b: 4, 16 (part).</p><p>Iconaxius parvus . — Balss, 1925: 210.</p><p>Not Axius (Eiconaxius) parvus .—De Man, 1925b: 42–44, pl. 3 fig. 7 (record off SW Kei I., 5°53.8'S, 132°48.8'E = E. demani Sakai, 1992).</p><p>Type material. Holotype: Kermadec Is., 29°55'S, 178°14'W, 951 m, NHMUK 1888.22 (female with 7 brephalos larvae attached, 12 mm).</p><p>Other material examined. Fiji, Lau Archipelago, Yangasa Cluster, 18°50'S , 178°27'W, 777–787 m, (BORDAU 1 stn CP1491), MNHN IU-2016-8025 (male, 4.3 mm); MNHN IU-2016-8026 (female, 4.5 mm); MNHN IU-2016-8027 (39 females, 4.3–5.1 mm); MNHN IU-2016-8028 (21 males, 3.6–4.5 mm); 18°51'S, 178°32'W, 785–820 m (BORDAU 1 stn CP1490), MNHN IU-2016-8031 (6 males, 9 females, 4.8–5.5 mm); 18°43'S, 178°23'W, 430–450 m (BORDAU 1 stn DW1492), MNHN IU-2016-8029 (male, 5.0 mm). Off Lakeba I., 18°47'S, 178°47'W, 750–767 m (BORDAU 1 stn CP1460), MNHN IU-2016-8030 (10 males, 13 females, 3.2–4.9 mm).</p><p>Wallis and Futuna Islands, 13°39'S, 179°56'E, 650–700 m (MUSORSTOM 7 stn DW636), MNHN IU- 2016- 8032 (female, 6.0 mm).</p><p>Description. Carapace smooth. Rostrum 0.2 carapace length, concave dorsally, parallel-sided over eyes, tapering to acute tip, with obscure tubercles on oblique margins, depressed below level of median carina, continuous with lateral carinae. Lateral gastric carina unarmed, with short hiatus between anterior ridge and short posterior section. Submedian gasric carina smooth, together semicircular and converging on median carina.</p><p>Median gastric carina obsolete, on base of rostrum only. Pleuron 1 ventrally rounded; pleuron 2 oblique angled, posteroventrally acutely produced; pleura 3, 4 posteroventrally acutely produced, pleuron 5 rounded, all without anteroventral tooth; pleuron 6 with acute posteroventral angle; pleonite 6 dorsal posterior margin microscopically denticulate.</p><p>Eyestalk 0.5 length of rostrum; cornea weakly pigmented. Antennular peduncle reaching almost end of antennal article 4; article 1 unarmed. Antennal peduncle article 1 unarmed; article 2 stylocerite a vertical blade, reaching just beyond end of article 4; scaphocerite a vertical blade, reaching to end of article 5; article 3 lower margin with mesial tooth; article 5 about half length of article 4. Maxilliped 3 coxa with mesial spine; ischium unarmed; crista dentata of about 14 similar teeth; merus and carpus unarmed; exopod a single article half as long as ischium.</p><p>Major cheliped merus lower margin with few irregular teeth, 2 spines distally, upper margin with minute tooth; carpus lower margin with distal tooth; propodus upper margin carinate, with small distal tooth, length 1.1 greatest height, lower margin smooth, lateral face smooth, mesial face with few tubercles distally; fixed finger 0.6 times as long as upper palm, cutting edge almost smooth, with longitudinal mesial ridge; distolateral margin of palm with upturned blade-like tooth and smaller more mesial tubercle in gape; dactylus distally curved, upper margin carinate, cutting edge smooth.</p><p>Minor cheliped shorter and more slender than major, palm 0.7 times height of major palm; merus lower margin with few irregular teeth, 2 spines subdistally; carpus lower margin with distal tooth; propodus dilating, upper margin carinate, 0.9 times greatest height, lower margin smooth, lateral and mesial faces smooth; fixed finger 1.3 times length of upper palm, cutting edge almost smooth, with longitudinal mesial ridge; distolateral margin of palm oblique, with prominent triangular tooth in gape; distomesial margin of palm oblique, with obsolete tubercle in gape; dactylus distally curved, upper margin carinate, cutting edge smooth.</p><p>Pereopod 2 ischium lower margin unarmed; merus lower margin unarmed; carpus 0.8 length of propodus upper margin; propodus upper margin twice as long as dactylus. Pereopod 3 merus unarmed; propodus 2.5 times as long as dactylus, with 5 rows of 1 or 2 spiniform setae; dactylus spatulate, with 11 spiniform setae along oblique margin, plus unguis, and 4 facial spiniform setae. Pereopod 4 virtually identical to pereopod 3; propodus 2.3 times as long as dactylus, with 6 rows of 1–3 spiniform setae; dactylus spatulate, with 10 spiniform setae along oblique margin, plus unguis, and 3 facial spiniform setae. Pereopod 5 propodus 2.4 times as long as dactylus, simple, distally densely setose, without spiniform setae; dactylus spatulate, with 8 spiniform setae along oblique margin, plus unguis.</p><p>Telson of male 1.4 times as long as wide, of female 1.55 times as long as wide, widest at midpoint, tapering to indeterminate posterolateral angles, lateral margin obscurely denticulate, distal margin evenly curved, with posteromedian spine; dorsal face with obsolete longitudinal ridges. Uropodal endopod 2.35 times as long as wide, oval, anterior margin with 7 teeth over distal half, last tooth distal, without longitudinal ridge. Uropodal exopod 1.8 times as long as wide, oval, anterior margin with 15 small irregular teeth over distal two-thirds, last tooth distal, without longitudinal rib.</p><p>Variation. In some females the maxilliped 3 exopod is as long as the ischium but others have intermediate lengths. The two teeth on the distolateral margin of the major cheliped palm may be variously fused but the larger one is always more lateral than the lower smaller one, with a concave or square upper margin and with convex distal-lower margin (Figs 2 g, h). The prominent triangular tooth on the distolateral margin of the minor cheliped palm may have a bifid apex (Fig. 2 i) and the tubercle on the distomesial margin may be duplicated (Fig. 2 j).</p><p>Distribution. New Zealand, Kermadec Is; Fiji, Lau Archipelago; Wallis and Futuna; 430–952 m depth.</p><p>Remarks. Spence Bate (1888) stated that he had ‘but one specimen of this species’ and superficially illustrated it, an ovigerous female. He also figured a brephalos larva in one of seven attached ‘ova’. Sakai &amp; de Saint Laurent (1989) erroneously listed ‘seven ovigerous females’, one of which they selected as a lectotype (Sakai, 2011). Poore &amp; Collins (2009: fig. 25) illustrated the female as the holotype which seems the more sensible status. The highly characteristic tooth and lobe in the gape of the major cheliped are identical to those of the new material from Fiji and Wallis and Futuna .</p><p>Eiconaxius parvus can be distinguished from other species by the characteristic upturned blade in the gape of the major cheliped. The species is similar, in as far as can be determined from illustrations, to E. asper Rathbun, 1906 from Hawaii in having a tooth in the gape of the major cheliped but lacks the denticulate crested median rostral carina. The tooth is rounded in E. asper whereas there is a larger upper-lateral upturned tooth and smaller mesial-lower tooth in the new species; the dactylar cutting edge of E. asper has a prominent basal tooth but is simple in E. parvus . Of other species in the western Pacific, E. hakuhou Sakai &amp; Ohta, 2005 from the Sulu Sea, E. weberi (De Man, 1907) from Indonesia and E. kimbla Kensley, 1996 from off Queensland, Australia, all lack teeth in the cheliped gape, and E. kermadeci Spence Bate, 1888 also off the Kermadec Islands has complex dentition in the gape of the major cheliped and along the fixed finger of the minor cheliped.</p></div>	https://treatment.plazi.org/id/0396CF176807FFF81DD73445FB89F981	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Poore, Gary C. B.	Poore, Gary C. B. (2017): Synonymy and problematic species of Eiconaxius Spence Bate, 1888, with descriptions of new species (Crustacea: Decapoda: Axiidea: Axiidae). Zootaxa 4231 (3): 364-376, DOI: 10.11646/zootaxa.4231.3.4
0396CF176804FFF71DD737EDFEA0FEEE.text	0396CF176804FFF71DD737EDFEA0FEEE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eiconaxius sibogae (De Man 1925) De Man 1925	<div><p>Eiconaxius sibogae (De Man, 1925)</p><p>(Fig. 1 e–g)</p><p>Axius (Eiconaxius) sibogae De Man 1925a: 218 .—De Man 1925b: 4, 15, 34, pl. 2 fig. 4. Eiconaxius sibogae .—Sakai &amp; de Saint Laurent 1989: 23.— Sakai 1992: 163, fig. 6. Eiconaxiopsis sibogae .— Sakai 2011: 295 –296, fig. 58.</p><p>Material examined. Bismarck Sea, E of Karkar I., 04°34'S, 146°17'E, 411–430 m (PAPUA NIUGINI stn DW3973), MNHN IU-2014-10397 (male, 6.4 mm). Point SE of Manus I., 02°10'S, 14°717'E, 300 m (BIOPAPUA stn CP3693), MNHN IU-2014-10399 (female, 10.0 mm)—selected from c. 50 specimens in MNHN.</p><p>Remarks. Sakai (2011) designated and reillustrated a lectotype, one of two syntypes. He placed the species in Eiconaxiopsis, presumably on the basis of the possession of a male pleopod 1 which he said to be ‘trisegmented’. It is a single article with a thin blade-like apex in the specimen illustrated here (Fig. 1 g). He illustrated the dactyli of pereopods 3 and 4 as typical of Eiconaxius, not as illustrated for E. heinrichi, the other species he included in Eiconaxiopsis .</p></div>	https://treatment.plazi.org/id/0396CF176804FFF71DD737EDFEA0FEEE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Poore, Gary C. B.	Poore, Gary C. B. (2017): Synonymy and problematic species of Eiconaxius Spence Bate, 1888, with descriptions of new species (Crustacea: Decapoda: Axiidea: Axiidae). Zootaxa 4231 (3): 364-376, DOI: 10.11646/zootaxa.4231.3.4
0396CF17680BFFF41DD730DDFD9CFD1D.text	0396CF17680BFFF41DD730DDFD9CFD1D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Eiconaxius vaubani	<div><p>Eiconaxius vaubani sp. nov.</p><p>(Figs 4–6)</p><p>Type material. Holotype: Madagascar. Off SE coast, 25°80.9'S, 47°21'E, 255 m, RV Vauban stn 65, Tabachnik colln, 1994, in external canal of hexactinellid sponge, MNHN IU- 2016-8133 (male, 3.8 mm).</p><p>Description of male holotype. Carapace smooth. Rostrum 0.2 times length of carapace length, concave dorsally, apex depressed below level of median carina, tapering to acute tip from lateral base of eyes, median distal ridge vertical-oblique, with small tooth, lateral margins converging, meeting median anterior rostral ridge at their most elevated level, unarmed, continuous with lateral gastric carinae. Lateral gastric carina unarmed, reaching about halfway to cervical groove. Submedian gastric carina smooth, obsolete, together converging on sharp median corner. Median gastric carina an obsolete broad triangular plate. Pleuron 1 triangular; pleuron 2 oblique-truncate, posteroventrally with sharp angle; pleura 3–4 truncate, posteroventrally acutely produced, each with minute anteroventral tooth; pleuron 6 subacute; pleonite 6 dorsal posterior margin smooth.</p><p>Eyestalk, little more than half length of rostrum; cornea unpigmented. Antennular peduncle reaching to end of antennal article 4; article 1 unarmed. Antennal article 1 unarmed; article 2 stylocerite a vertical blade, reaching to midpoint of article 4; scaphocerite a vertical blade, reaching just beyond end of article 4; articles 3 and 4 unarmed. Maxilliped 3 endopod missing on both sides, with elongate exopod.</p><p>Major cheliped ischium lower margin irregularly toothed; merus lower margin with 1 small distal tooth, upper margin convex; carpus lower margin with 1 distal tooth; propodus upper margin length 1.25 times greatest height; upper margin smooth, ending in 2 short carinae, lower margin smooth; fixed finger 0.4 times as long as upper palm, cutting edge with irregular rounded teeth, most prominent over proximal third; dactylus upper margin strongly convex, with double carinae, cutting edge irregular, most prominent tooth truncate near apex.</p><p>Minor cheliped more slender than major; ischium lower margin with small distal tooth; merus upper margin convex, lower margin with 3 small teeth; carpus lower margin with 1 distal tooth; propodus upper margin length 1.2 times greatest height; upper margin smooth, lower margin smooth, lateral face with oblique ridge running on to fixed finger and ending in 2 blunt teeth; mesial face with oblique curved ridge running on to fixed finger and ending in blunt tooth, distal margin (dactylus articulation) oblique, with 2 minute teeth laterally, with 2 small teeth mesially; fixed finger third length of upper palm, cutting edge with irregular teeth; dactylus tapering, cutting edge with basal tubercle, otherwise smooth.</p><p>Pereopod 2 ischium lower margin unarmed; merus lower margin unarmed; carpus 1.2 times length of propodus upper margin; propodus upper margin 1.3 times as long as dactylus. Pereopod 3 merus unarmed, widest at midpoint, 3.3 times as long as wide; propodus 2.0 times as long as dactylus, with 6 transverse rows of 2 or 3 spiniform setae; dactylus ovate, with 7 marginal spiniform setae along oblique margin, plus unguis, 13 facial spiniform setae in rows of 8 and 4. Pereopod 4 merus unarmed, parallel-sided, 5.2 times as long as wide; dactylus ovate, with 7 spiniform setae along oblique margin, plus unguis, 16 facial setae in irregular rows of 9 and 7. Pereopod 5 propodus 2.3 times as long as dactylus, simple, distally densely setose, with 1 distal spiniform seta; dactylus spatulate, with 7 spiniform setae along oblique margin, plus unguis, 4 facial spiniform setae in 1 row.</p><p>Pleopod 1 a simple elongate article. Pleopods 2–5 each with appendix interna 0.3 length of endopod. Pleopod 2 of male appendix masculina 0.9 times as long as appendix interna, broader, with terminal setae.</p><p>Telson 1.1 times as long as wide, widest proximally, then tapering evenly to 0.7 of maximum width, lateral margin with irregular small teeth, distal margin a shallow obtuse angle between weak distolateral teeth, with pair of distolateral spiniform setae, with posteromedian spine; dorsal face with 3 pairs of small spines. Uropodal endopod 2.0 times as long as wide, elongate-oval, with 11 teeth along anterior margin, most distal ones larger and produced beyond curved posterior margin. Uropodal exopod 1.45 times as long as wide, oval with c. 15 small irregular teeth on anterior margin, last tooth distal, with apical spiniform setae, posterior margin convex, smooth.</p><p>Etymology. The species is named for the French oceanographic research vessel, RV Vauban.</p><p>Distribution. Off Madagascar, SE coast, 255 m; in canal of hexactinellid sponge (known only from the type locality).</p><p>Remarks. Eiconaxius vaubani is an atypical species of Eiconaxius but shares with all others no suture on the uropodal exopodal, no supraocular spines and submedian gastric carinae, an unarmed lateral gastric carina, swollen chelipeds and spatulate dactylus on pereopod 5, pleopods 3–5 with appendices internae and an appendix masculina on the male pleopod 2. It differs from all other species most obviously in the shape of the rostrum, chelipeds and pereopod 4. The apex of the rostrum of typical species of Eiconaxius is formed of the confluence of its lateral margins (e.g., Figs 2 a, b). The rostrum of E. vaubani is produced anteroventrally beyond the confluence of its lateral margins (Figs 4 a, b, 5a, b). The fixed finger of the minor cheliped of E. vaubani is triangular with a broad base as in typical Eiconaxius but is one third of the length of the upper palm (Figs 4, 3 e–h) whereas in most Eiconaxius the fixed finger is as long or longer than the palm. Two species of Eiconaxius are exceptional in this regard: the fixed finger of E. kimbla Kensley, 1996 (male pleopod 1 absent), and of E. heinrichi (Sakai, 2011) (male pleopod 1 present) are significantly shorter than the upper palm. The merus of pereopod 4 of E. vaubani is narrower and 1.4 times as long as the meri of pereopods 2 and 3 (Fig. 6) whereas in other species of Eiconaxius the meri of pereopods 2–4 are of similar proportions and lengths. The male pleopod 1 is a simple article (Fig. 5 c) whereas, except for at least the five species listed above, it is absent in most species of Eiconaxius .</p><p>While it is tempting to erect a new genus for this species doing so would lead to probable paraphyly of those species remaining in Eiconaxius .</p></div>	https://treatment.plazi.org/id/0396CF17680BFFF41DD730DDFD9CFD1D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Poore, Gary C. B.	Poore, Gary C. B. (2017): Synonymy and problematic species of Eiconaxius Spence Bate, 1888, with descriptions of new species (Crustacea: Decapoda: Axiidea: Axiidae). Zootaxa 4231 (3): 364-376, DOI: 10.11646/zootaxa.4231.3.4
