Pseudischyrocerus, SCHELLENBERG, 1931

Souza-Filho, Jesser F. & Serejo, Cristiana S., 2014, On the phylogeny of Ischyroceridae (Amphipoda, Senticaudata, Corophiida), with the description of a new genus and eight new species from deep-sea Brazilian waters, Zoological Journal of the Linnean Society 170 (1), pp. 34-85 : 64

GENUS PSEUDISCHYROCERUS SCHELLENBERG, 1931

Pseudischyrocerus Schellenberg, 1931: 234 . – J.L. Barnard, 1973: 26. – J.L. Barnard & Karaman, 1991: 229. – Valério-Berardo, 2001: 65.

Type species

Pseudischyrocerus denticauda Schellenberg, 1931 .

Diagnosis

Antenna 1 subequal to antenna 2, peduncular article 1 long and rectangular; accessory flagellum 2-articulate, article 1 longer than article 2. Eyes present or absent. Mandibular palp well developed and 3-articulate. Gnathopod 1 carpus longer than propodus. Gnathopod 2 male subchelate; carpus shorter than propodus. Coxae 1–5 longer than wide, and coxae 6 and 7 wider than long. Coxa 4 posterior margin not excavated. Coxa 5 with posterodorsal lobe. Pereopods 3 and 4 merus equal in size. Pereopods 5–7 with at least the propodus and dactylus directed anteriorly, and without accessory spines. Pereopod 5 dissimilar to pereopods 6 and 7 in shape and length; carpus long, subrectangular, and without denticles or spines on a posteroventral margin. Pleosomite without lateral ridges. Pleopods peduncle slender and not expanded. Pleopod 2 inner ramus present, as long as outer ramus. Urosomite 1 without dorsal spines. Uropod 2 biramous; outer margin of outer ramus smooth, with robust setae.

Included species

Pseudischyrocerus besnardi Valério-Berardo, 2001 ; Pseudischyrocerus caecus sp. nov.; Pseudischyrocerus denticauda Schellenberg, 1931 ; and Pseudischyrocerus distichon (K.H. Barnard, 1930) .

Excluded species: Pseudischyrocerus crenatipes Bellan- Santini & Ledoyer, 1986 is herein removed to the genus Bathyphotis Stephensen, 1944 .