Description of two new species of Ischyroceridae (Crustacea: Amphipoda) from the coast of Southeastern Brazil Author Valério-Berardo, Maria Teresa Author Souza, Ana Maria Thiago De Author Rodrigues, Carina Waiteman text Zootaxa 2008 1857 55 65 journal article 10.5281/zenodo.183596 9c0bde2f-7d5e-491d-bd59-a6d05c869e35 1175-5326 183596 Genus Cerapus Say, 1817 Diagnosis: (Modified from Lowry & Berents, 1996 ) Rostrum acute. Antenna 1, peduncle article 1 rectangular, not produced anterodistally or medially, without accessory flagellum. Gnathopod 2 of male adult, 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 unirramous, ramus vestigial bearing recurved spines.