Seba Bate 1862

• Main Author: Ariyama, Hiroyuki
• Format: Text
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Sebidae; Seba; Antarctic; Southern Ocean; The Antarctic; New Zealand; Seta; Lowry; Ortiz; Chevreux; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.6217308; https://zenodo.org/record/6217308

Genus Seba Bate, 1862 Seba Bate, 1862: 159 (type species: Seba innominata Bate, 1862 by monotypy).— Stebbing, 1888: 782.— Della Valle, 1893: 773.— Stebbing, 1906: 162. – Walker, 1907: 37.— Schellenberg, 1931: 83.— J.L. Barnard, 1969: 436.— Karaman, 1971: 73.— Holman & Watling, 1983: 239.— Ledoyer, 1986: 944.— Shaw, 1989: 1885.—J.L. Barnard & Karaman, 1991: 668.— Karaman, 1993: 681.— Lowry & Stoddart, 2003: 250. Teraticum Chilton, 1884: 257 (type species: Teraticum typicum Chilton, 1884). Grimardia Chevreux, 1889: 284 (type species: Grimardia armata Chevreux, 1889). Paravalettia K.H. Barnard, 1916: 112 (type species: Paravalettia chelata K.H. Barnard, 1916). Caribseba Shaw, 1989: 1885 (type species: Seba tropica McKinney, 1980). Diagnosis [modified from J.L. Barnard & Karaman (1991)]. Body compressed, smooth or weakly carinate; urosomites 2 and 3 coalesced (except for Seba aloe Karaman, 1971). Rostrum obsolete, lateral lobes well developed, eyes absent [except for S. typica (Chilton, 1884)]. Antennae 1 and 2 of medium length, extending equally; peduncle of antenna 1 long, articles 1 and 2 longer than article 3; accessory flagellum present (except for S. tropica ), 2 -articulate, article 2 tiny; flagella of both antennae short. Mandibular incisor developed, toothed, molar reduced; palp long, with 3 articles, article 2 elongate, article 3 with 1–3 (mostly 2) apical setae. Labium with well-developed mandibular lobes, inner lobes indistinct. Maxilla 1 with blunt inner plate bearing 0–2 apical setae, outer plate with 7 apical setae; palp elongate, 1 -articulate, with 1–4 apical setae. Maxilla 2 formed of weakly setose similar plate, outer plate bearing 3–5 setae. Plates of maxilliped moderately developed, poorly setose; palp stout, 4 -articulate, dactylus unguiform. Coxae 1–4 of medium length, coxa 4 poorly excavate posteriorly; coxae 5–7 moderately shortened. Gnathopod 1 weakly chelate or subchelate; carpus short, lobed; propodus broad. Gnathopod 2 slender, strongly chelate; ischium elongate; carpus long, unlobed; propodus elongate, forming a chela with fitted dactylus. Pereopods 3 and 4 similar, ordinary; pereopods 5–7 relatively similar to each other, bases expanded, meri often expanded and lobate. Coxal gills present on pereopods 2 or 3 to 6, oostegites of female on pereopods 2–5. Pleopods ordinary. Uropods 1 and 2 biramous, stout, weakly spinose or almost naked, outer rami subequal or slightly shorter than inner rami; uropod 3 uniramous, peduncle short, ramus much longer than peduncle, 2 -articulate. Telson linguiform, longer than broad, entire, poorly setulose. Sexual dimorphism often present in gnathopod 1 and pereopods 5–7. Remarks. Walker (1907) proposed to call the genus Seba Stebbing, 1875, with Seba saundersi Stebbing, 1875 as the type species, because the existence of S. innominata had been questioned (Stebbing, 1888; Della Valle, 1893); Karaman (1971) approved of the proposal, and Holman & Watling (1983) also pointed out this taxonomic problem. However, referring the International Code of Zoological Nomenclature (International Commission of Zoological Nomenclature, 1999: Articles 50.1, 67.2), Bate’s (1862) nomenclature is valid. Shaw (1989) presented the following characters for the diagnosis of the new genus Caribseba : (1) antenna 1 without accessory flagellum, (2) inner plate of maxilla 1 without apical seta, and (3) mandibular palp segment 3 with single apical seta. Although only Carib s eba tropica , the type species of the genus, actually has the character (1) in the species of the genera Seba and Caribseba , the characters (2) and (3) are shared with some of the Seba species as Winfield et al . (2009) stated [character (2): S. alvarezi , S. ekepuu J.L. Barnard, 1970 and S. robusta character (3): S. ekepuu and S. robusta ]. Moreover, there are wide morphological variations in the genus Seba [e.g. the presence of eyes in Seba typica , and the separated urosomites 2 and 3 in S. aloe ]; therefore, Caribseba should be restored to Seba . : Published as part of Ariyama, Hiroyuki, 2009, Four species of the genus Seba from Japan, with descriptions of two new species (Crustacea: Amphipoda: Sebidae), pp. 44-68 in Zootaxa 2159 on pages 44-45, DOI: 10.5281/zenodo.188912 : {"references": ["Bate, C. S. (1862) Catalogue of the specimens of amphipodous Crustacea in the collection of the British Museum, London. British Museum of Natural History, London, United Kingdom, 399 pp., 58 pls.", "Stebbing, T. R. R. (1888) Report on the Amphipoda collected by H. M. S. Challenger during the years 1873 - 76. Report on the Scientific Results of the Voyage of H. M. S. Challenger during the Years 1873 - 76, zoology, 29, 1 - 1737, 210 pls.", "Della Valle, A. (1893) Gammarini der Golfo di Napoli, Fauna und Flora des Golfes von Naepel und der angrenzenden Meeres-Abschnitte, Monographie, 20, 1 - 948, 61 pls.", "Stebbing, T. R. R. (1906) Amphipoda. I. Gammaridea. Das Tierreich, 21, 1 - 806.", "Walker, A. O. (1907) Crustacea. III. - Amphipoda. National Antarctic Expedition, British Museum (Natural History), 3, 1 - 39, 13 pls.", "Schellenberg, A. (1931) Gammariden und Caprelliden des Magellangebietes, Sudgeorgiens und der Westantarktis. Further Zoological Results of the Swedish Antarctic Expedition 1901 - 1903, 2 (6), 1 - 290, 1 pl.", "Barnard, J. L. (1969) The families and genera of marine gammaridean Amphipoda. Bulletin of the United States National Museum, 271, 1 - 535.", "Karaman, G. S. (1971) Zum problem der Seba arten: Seba aloe n. sp. und Seba armata (Chevreux) (Fam. Sebidae). XXXV. Beitrag zur Kenntnis der Amphipoden. Memorie del Museo civico di storia naturale di Verona, 19, 73 - 90.", "Holman, H. & Watling, L. (1983) Amphipoda from the Southern Ocean: families Colomastigidae, Dexaminidae, Leucothoidae, Liljeborgiidae, and Sebidae. Biology of the Antarctic Seas XIII, Antarctic Research Series, 38, 215 - 262.", "Ledoyer, M. (1986) Crustaces amphipodes gammariens familles des Haustoriidae a Vitjazianidae. Faune de Madagascar, 59 (2), 599 - 1112.", "Shaw, P. (1989) New amphipods from geothermal vent sites off the west coast of Vancouver Island, British Columbia, with a reappraisal of the amphipod family Sebidae. Canadian Journal of Zoology, 67, 1882 - 1890.", "Barnard, J. L. & Karaman, G. S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Records of the Australian Museum, Supplement, 13 (Parts 1 and 2), 1 - 866.", "Karaman, G. S. (1993) Family Sebidae. In: Ruffo, S. (Ed.), The Amphipoda of the Mediterranean, Part 3, Gammaridea (Melphidippidae to Talitridae), Ingolfiellidea, Caprellidea (Memoires de l'Institut Oceanographique, 13). Institut Oceanographique, Monaco, pp. 681 - 684.", "Lowry, J. K. & Stoddart, H. E. (2003) Crustacea: Malacostraca: Peracarida: Amphipoda, Cumacea, Mysidacea (Zoological Catalogue of Australia, Vol. 19.2 B). CSIRO Publishing, Melbourne, Australia, 531 pp.", "Chilton, C. (1884) Additions to the sessile-eyed Crustacea of New Zealand. Transactions of the New Zealand Institute, 16, 249 - 265, pls. 17 - 21.", "Chevreux, E. (1889) Amphipodes nouveaux provenant des campagnes de l' Hirondelle 1887 - 1888. Bulletin de la Societe zoologique de France, 14, 283 - 289.", "Barnard, K. H. (1916) Contributions to the crustacean fauna of South Africa. 5. The Amphipoda. Annals of the South African Museum, 15, 105 - 302, pls. 26 - 28.", "McKinney, L. D. (1980) Four new and unusual amphipods from the Gulf of Mexico and Caribbean Sea. Proceedings of the Biological Society of Washington, 93, 83 - 103.", "Stebbing, T. R. R. (1875) On some new exotic sessile-eyed crustaceans. Annals and Magazine of Natural History, series 4, 15, 184 - 188, pl. 15 A.", "Winfield, I., Ortiz, M. & Chazaro-Olvera, S. (2009) A new sponge-inhabiting amphipod species (Crustacea, Gammaridea, Sebidae) from the Veracruz Coral Reef System, southwestern Gulf of Mexico. Organisms, Diversity & Evolution, 9, 72. e 1 - 72. e 8.", "Barnard, J. L. (1970) Sublittoral Gammaridea (Amphipoda) of the Hawaiian Islands. Smithsonian Contributions to Zoology, 34, 1 - 286."]}