Cerapus Say, 1817

Nurshazwan, J., Ahmad-Zaki, A. B. & Azman, B. A. R., 2020, A new species of Cerapus (Amphipoda: Senticaudata: Ischyroceridae) from Pulau Bum Bum, Sabah, Malaysia, with an identification key to Cerapus species, Zootaxa 4802 (3), pp. 519-533 : 521

Genus Cerapus Say, 1817

Type species. Cerapus tubularis Say, 1817

Generic diagnostic characters. (Based on Valeìrio-Berardo et al. (2008) Rostrum acute. Antenna 1, peduncle article 1 rectangular, not produced anterodistally or medially, without accessory flagellum. Gnathopod 2 of adult male, carpochelate, subchelate in female. Pereopods 3 to 7 with dactyli directed posteriorly. Pereopod 5 coxa in female larger than in male, without fringe of long setae; dactylus with large unguis and 1–2 small accessory spines. Dactyli of pereopods 6 and 7 with 1–2 small accessory spines. Pereopod 7 elongate, Pleopods 2 and 3 with inner rami reduced, 1-articulate. Uropod 2 with 1 ramus. Uropod 3 uniramous, ramus vestigial bearing recurved spines.

Current species composition. C. alquirta ( Barnard & Drummond, 1981) ; C. benthophilus Thomas & Heard, 1979 ; C. bundegi Lowry & Berents, 2005 ; C. calamicola ( Giles, 1885) ; C. chaomai Lowry & Berents, 2002 ; C. cudjoe Lowry & Thomas, 1991 ; C. erae Bulyčeva, 1952 ; C. jonsoni Valério-Berardo, Thiago de Souza & Waiteman Rodrigues, 2008 ; C. longirostris Shen, 1936 ; C. maculanigra Zeina & Asakura, 2017 ; C. micronesicus Myers, 1995 ; C. murrayae Lowry & Berents, 2005 ; C. nudus Just, 2009 ; C. oceanicus Lowry, 1985 ; C. orteai Ortiz & Thomas, 2007 ; C. pacificus Lowry, 1985 ; C. ryanadamsi Drumm, 2018 ; C. slayeri Drumm, 2018 ; C. thomasi Ortiz & Lemaitre, 1997 ; C. tubularis Say, 1817 ; C. volucola Lowry & Berents, 2005 ; C. yuyatalay Lowry & Berents, 2002 .