Cerapus Say 1817
Creators: name: Lowry, J. K.
name: Berents, Penelope B.
Publisher: name: Zenodo
Year: 1996
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Ischyroceridae
Cerapus

description: <i>Cerapus</i> Say <i>Cerapus</i> Say, 1817: 49. <i>Baracuma</i> Barnard &amp; Drummond, 1981: 31. Diagnosis. <i>Antenna</i> 1: peduncular article 1 with proximoventral swelling; without accessory flagellum. <i>Mandibles:</i> left incisor with 6 teeth; left lacinia mobilis with 5 teeth; left accessory setal row with 2­ 3 broad robust setae and 2-3 intermediate plumose setae; right incisor with 5-6 teeth; right lacinia mobilis with 1 large tooth and a minutely denticulate margin; right accessory setal row with 2 setae and 2 plumose setae; mandibular palp elongate, slender. <i>Maxilla</i> 1: outer plates each with 10 setal-teeth. <i>Gnathopod</i> 2: carpochelate in male, subchelate in female. <i>Peraeopods</i> 3 <i>to</i> 7: dactyli all directed posteriorly. <i>Peraeopod</i> 4: merus short, not expanded posteriorly. <i>Peraeopod</i> 5: coxa in female larger than in male, without fringe of long setae; dactylus with large unguis and 1-2 small accessory <i>spines. Peraeopod 6:</i> dactylus with large unguis and 2 small accessory spines. <i>Peraeopod</i> 7: dactylus with large unguis and 1-2 small accessory spines. <i>Pleopod</i> 2: inner ramus reduced, 1­ articulate. <i>Pleopod</i> 3: inner ramus reduced, I-articulate ramus. <i>Uropod</i> 2 with one ramus. <i>Uropod</i> 3 with one vestigial ramus bearing small recurved spines. Type species. <i>Cerapus tubularis</i> Say, 1817. Species composition. <i>Cerapus</i> currently contains 11 species: C. <i>'alquirtus</i> (Barnard &amp; Drummond, 1981); C. <i>benthophilus</i> Thomas &amp; Heard, 1979; <i>Cerapus calamicola</i> (Giles, 1885); C. <i>cudjoe</i> Lowry &amp; Thomas, 1991; C. <i>erae,</i> Bulycheva, 1952; C. <i>flindersi</i> Stebbing, 1888; C. <i>longirostris</i> Shen, 1936; C. <i>micronesicus</i> Myers, 1995; C. <i>oceanicus</i> Lowry, 1985; C. <i>pacificus</i> Lowry, 1985; and C. <i>tubularis</i> Say, 1817. <i>Cerapus abditus</i> Templeton, 1836 is considered to be an unrecognisable species. Remarks. Lowry &amp; Berents (1989) showed that the elongation of peraeonite 5 in the female is not a generic character among the <i>Cerapus</i> clade. They maintained <i>Baracuma</i> based on the sternal keel. Budnikova (19,89) has synonymised <i>Baracuma</i> with <i>Cerapus.</i> 佴戮繲 possible generic differences between these tightly 'defined species are: in C. <i>erae,</i> C. <i>longirostris</i> and C. <i>oceanicus</i> the dactyli of peraeopod 5 have two small accessory spines instead of one; and in C. <i>alquirtus</i> and C. <i>oceanicus</i> there is only one accessory spine on the dactylus of peraeopod 7.
description: Published as part of <i>Lowry, J. K. &amp; Berents, Penelope B., 1996, The Ericthonius group, a new perpective on an old problem (Crustacea: Amphipoda: Corophioidea), pp. 75-109 in Records of the Australian Museum 48 (1)</i> on pages 84-85, DOI: 10.3853/j.0067-1975.48.1996.281, http://zenodo.org/record/4654913
description: {"references": ["Say, T., 1817. On a new genus of the Crustacea, and the species on which it was established. Journal of the Academy of Natural Sciences of Philadelphia 1: 49 - 52.", "Thomas, J. D. &amp; R. W. Heard, 1979. A new species of Cerapus Say, 1817 (Crustacea: Amphipoda) from the northern Gulf of Mexico with notes on its ecology. Proceedings of the Biological Society of Washington 92: 9 - 105.", "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: i-xxiv + 1 - 1713, pIs 1 - 210.", "Shen, C,}., 1936. Description of a tube-dwelling amphipod collected on the coast of Shantung peninsula. Bulletin of the Fan Institute of Biology (Zoology) 6: 265 - 273.", "Myers, A. A., 1995. Marine Amphipoda of Micronesia: Kosrae. Records of the Australian Museum 47 (1): 27 - 38.", "Lowry, J. K., 1985. Two new species of Cerapus from Samoa and. Fiji (Crustacea: Amphipoda: Ischyroceridae). Records of the Australian Museum 36: 157 - 168.", "Templeton, R., 1836. Descriptions of some undescribed exotic Crustacea. Transactions of the Entomological Society of London 1: 185 - 198, pIs 20 - 22.", "Lowry, J. K. &amp; P. B. Berents, 1989. A redescription of Cerapus tubularis Say, 1817, based on material of the first reviewer, S. I. Smith, (Crustacea: Amphipoda: Corophioidea). Journal of Natural History 23: 1341 - 1352."]}