Cymadusa Savigny, 1816

Andrade, Luiz F. & Senna, André R., 2017, Two new species of Ampithoidae (Crustacea: Amphipoda) from northeastern Brazil, Zootaxa 4282 (3), pp. 487-500 : 494

Genus Cymadusa Savigny, 1816

Diagnosis. Antenna 1 accessory flagellum scale-like, single or multi-articulate; epistome and upper lip directed straight down, 90 degrees to the ventral margin of the head; mandible molar well developed; palp 3-articulate; lower lip outer plate with notch or slit; gnathopod 1 feeble or diminutive, smaller than or similar in size to gnathopod 2; coxa 1 produced forward, palm acute to subacute; gnathopod 2 subchelate; pereopods 5–7 simple or weakly prehensile; uropod 1 reaching to the apices of the rami of uropod 2 (in situ), peduncle with long and acute distoventral spur; uropod 3 rami broad, outer ramus with 2 large recurved distal robust setae; telson cusps small, or absent.