Alcock, 1896
Relative small size. Carapace manifestly longer than broad. Surface only finely granular. External orbital spine reaching to bases of frontal teeth. Notches of median and lateral frontal teeth narrow; lateral teeth longer than median ones, with tip directed outwards. Eyestalks somewhat mobile. Male chelipeds symmetrical; hand somewhat enlarged. P2-P3 relatively long and slender; merus of P3 about 7.6 times longer than broad. Merus of P5 about 6 times longer than broad. (Guinot 1998)
Type locality: Andaman Sea and Laccadive Sea.
Range: Madagascar - north-west and west coast (Chen H., 1988); Laccadive Sea (Alcock, 1896); Andaman Sea (Alcock, 1896); East China Sea (Chen, 1986c); South China Sea; Philippines - west of Lubang Island and Verde Island Passage (Chen, 1986a); Indonesia - Sumbawa, Salayar and Roti (Ihle, 1916), Makassar Strait (Chen, 1993), Tanimbar Islands (Chen, 1997); 485-2350 m.