Genus Amigdoscalpellum Zevina, 1978

Arcoscalpellum Hoek, 1907: 85 (in part). - Newman and Ross 1971: 42 (part).

Amigdoscalpellum Zevina, 1978b: 1349. - Foster 1980: 527. - Liu and Ren 1985: 206. - 2007: 251.

Diagnosis.

Capitulum of female or hermaphrodite with 13 or 14 completely calcified plates; scutum and tergum with umbones apical; carina evenly bent, umbo apical or subapical; middle latera narrowly triangular, baton-like, small, umbo apical, not reaching upper latera; carinolatera typically with umbo orientated in middle part of carinal area, not extending beyond rim of capitulum; caudal appendages usually uni-articulate, but possibly absent or extended to seven segments; basically females with dwarf males.

Type species.

Scalpellum manum Zevina, 1973: 843, figs 1-7; type locality: Indian Ocean, 12°18'S, 112°43'E.