Corophiinae Leach, 1814

Wongkamhaeng, Koraon, Nabhitabhata, Jaruwat & Towatana, Prawit, 2015, Corophiine amphipods of the genera Chelicorophium and Paracorophium from the lower Gulf of Thailand (Crustacea, Amphipoda, Corophiidae, Corophiinae), ZooKeys 505, pp. 35-50 : 35-36

Taxon classification Animalia Amphipoda Corophiidae

Corophiinae Leach, 1814

Paracorophium Stebbing, 1899.

Diagnosis.

Labrum symmetrically incised, labium normal,with innerlobes. Maxilla 1: inner lobe small, palp 2-articulate. Maxilliped: inner margin of outer lobe with several slender spines. Mandible: molar triturative, incisor toothed, palp 3-articulate. Rostrum short, coxa 4 without distoposterior lobe, coxa 5 as long as coxa 4. Accessory flagellum absent. Gnathopod 1 subchelate, gnathopod 2 merochelate, distally chelate, parachelate or subchelate. Basis of pereopods 5-7 not lobed. Peduncle of uropod 1 with distoventral strong tooth. Uropod 3 very short, biramous, rami unisegmented. Telson short, fleshy, entire, bearing 2 distal corner teeth. Oostegyts narrow, coxal gills simple. Sexual dimorphism present (gnathopod 2).

Type species.

Corophium excavatum Thomson, 1884 (type by monotypy)

Species composition.

Paracorophium excavatum (G.M. Thomson, 1884); Paracorophium lucasi Hurley, 1954; Paracorophium chelatum (G. Karaman, 1979); Paracorophium hartmannorum Andres, 1979; Paracorophium chilensis Varela, 1983; Paracorophium brisbanensis Chapman, 2002; Paracorophium nana Myers, 2009. Paracorophium angsupanichae sp. n. (this study).