Cymadusa Savigny, 1816

Cymadusa Savigny, 1816: 109 .—Conlan & Bousfield, 1982: 43.—Barnard & Karaman, 1991: 104.—Poore & Lowry, 1997; 900.—Peart, 2007a: 2–3.

Grubia Czerniavsky, 1868: 103 .

Acanthogrubia Stout, 1912: 143 .

Type species. Cymadusa filosa Savigny, 1816, by monotypy.

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 spine. Uropod 3 rami broad; outer ramus with 2 large recurved distal robust setae.Telsonic cusps small, or absent.

Indo-Pacific s pecies composition. Cymadusa alyxis Hughes & Lowry, 2009; C. aungtonyae Peart, 2002; C. bilobata (Ruffo, 1969); C. botulus sp. nov.; C. brevidactyla (Chevreux, 1907); C. cavimana (Sivaprakasam, 1971); C. chalongana Peart, 2002; C. chuawe Peart, 2007 a; C. compta (Smith, 1873); C. crassicornis (Costa, 1857); C. drummondae sp. nov.; C. elegantis Peart, 2007 a; C. euclidius sp. nov.; C. filosa Savigny, 1816; C. grossimana Ledoyer, 1984; C. hadros sp. nov.; C. hallex sp. nov.; C. hawaiensis (Schellenberg, 1938); C. hentyana sp. nov.; C. heronensis Peart, 2007 a; C. hoeyae Hughes & Lowry, 2009; C. imbroglio Rabindranath, 1972; C. jubata sp. nov.; C. khbarnardi Hughes & Lowry 2009; C. ledoyeri Peart, 2004; C. lumanus sp. nov.; C. mariabyrneae Hughes & Lowry, 2009; C. mauritiensis (Ledoyer, 1978); C. microphthalma (Chevreux, 1901); C. munnu Poore & Lowry, 1997; C. oceanica J.L. Barnard, 1955; C. pemptos Peart, 2007 a; C. platys sp. nov.; C. priscileo sp. nov.; C. setosa (Haswell, 1879); C. smilodonta Hughes & Lowry, 2009; C. tattersalli Peart, 2004; C. thagaay Peart, 2007 a; C. tishana Peart, 2007 a; C. uncinata (Stout, 1912) comb. nov.; C. vadosa Imbach, 1967; C. variata (Sheard, 1936) comb. nov.; and C. wistari Peart, 2007 a.

Remarks. See Introduction.