Antarctodius Berge, Vader & Coleman 1999

Autor: Ariyama, Hiroyuki
Rok vydání: 2021
Předmět:
DOI: 10.5281/zenodo.5700476
Popis: Genus Antarctodius Berge, Vader & Coleman, 1999 [Japanese name: Mukashi-subeyokoebi-zoku] Antarctodius Berge, Vader & Coleman, 1999: 244; Labay, 2010: 35. Type species. Odius antarcticus Watling & Holman, 1981. Diagnosis [emended from Ariyama (2011)]. Body, anterodorsal margin of pereonite 1 not produced; dorsal projections of pereonites absent, those of pleonites present or absent; posterolateral margin of pleonite 3 with or without projection. Eyes variable. Antenna 1, peduncle with article 2 shorter than article 1; accessory flagellum absent or present. Upper lip, tip incised asymmetrically. Mandible conical; incisor narrow; lacinia mobilis present on left side; palp somewhat distal to molar. Lower lip with outer lobes long, strongly notched inside. Maxilla 1 with inner plate bearing 3 apical plumose setae; outer plate relatively short, styliform, with many robust setae on tip; palp 2-articulated, wide, exceeding outer plate, with several apical setae. Maxilla 2, inner plate almost same length as outer plate, mediodistal margins of both plates strongly setose. Maxilliped, inner plate narrow; outer plate medium, reaching distal end of palp article 2; palp 4-articulated, article 2 not expanded medially, article 4 short or long. Coxa 1 a little shorter than coxa 2; coxae 2–4 progressively wider, equally long. Gills present on gnathopod 2–pereopod 7(?). Oostegites of female present on gnathopod 2–pereopod 5. Gnathopod 1, propodus not projected posterodistally, posterodistal corner with long robust seta; dactylus small, triangular, with several plumose setae. Gnathopod 2, propodus narrow, palm weakly transverse, distal margin serrated; dactylus with accessory spine. Pereopods 3–7, meri projected distally. Uropods, inner ramus of uropod 3 slightly wide; peduncles of uropods 1, 2 and both rami bearing many robust setae. Telson cleft or entire. Species included. Antarctodius antarcticus (Watling & Holman, 1981); A. japonicus Ariyama, 2011; A. noncarinatus Labay, 2010; and A. rauscherti Coleman & Kauffeldt, 2001. Remarks. The diagnosis of the genus is emended mainly because the presence of the accessory flagellum and the gill on the coxa 7 is confirmed in the present study. However, in the papers dealing with the other Antarctodius species, the accessory flagellum is stated to be absent and the gill is not mentioned (Watling & Holman 1981, Coleman & Kauffeldt 2001, Labay 2010). A closer examination of them is needed. Distribution. Antarctic Ocean, Okhotsk Sea and Japan.
Published as part of Ariyama, Hiroyuki, 2021, Five species of the family Odiidae (Crustacea: Amphipoda) collected from Japan with descriptions of a new genus and four new species, pp. 485-516 in Zootaxa 5067 (4) on pages 512-513, DOI: 10.11646/zootaxa.5067.4.2, http://zenodo.org/record/5683379
{"references":["Berge, J., Vader, W. & Coleman, O. (1999) A cladistic analysis of the amphipod families Ochlesidae and Odiidae, with description of a new species and genus. In: Schram, F. R. & von Vaupel Klein, J. C. (Eds.), Crustaceans and the Biodiversity Crisis. Brill, Leiden, pp. 239 - 265.","Labay, V. S. (2010) A new species and subspecies of Ochlesidae Stebbing, 1910 (Amphipoda: Gammaridea) from the Okhotsk Sea. Zootaxa, 2354 (1), 35 - 44. https: // doi. org / 10.11646 / zootaxa. 2354.1.3","Watling, L. & Holman, H. (1981) Additional acanthonotozomatid, paramphithoid, and stegocephalid Amphipoda from the Southern Ocean. Proceeding of the Biological Society of Washington, 94, 181 - 227.","Ariyama, H. (2011) Six species of the family Odiidae (Crustacea: Amphipoda) from Japan, with descriptions of a new genus and four new species. Bulletin of the National Museum of Nature and Science, Series A (Zoology), Supplement, 5, 1 - 39.","Coleman, C. O. & Kauffeldt, J. (2001) Antarctodius rauscherti, a new species (Crustacea: Amphipoda: Ochlesidae) from the Antarctic Ocean. Proceedings of the Biological Society of Washington, 114, 427 - 434."]}
Databáze: OpenAIRE
Externí odkaz: