(de Man, 1888)
Carapace moderately broad (breadth slightly less than twice length); surface with elevated areas, whose granulation is not always distinct and which are separated by areas of fine pubescence; regions well recognizable; front truncate very indistinctly quadrilobate; antero-lateral borders with 9 teeth, last one much larger than the preceeding ones and projecting slightly backwards; postero-lateral junction about rectangular. Antero-external angle of merus of third maxillipeds markedly produced into a lobe. Chelipeds moderately stout, granulated and tomentose; merus with a spine and a lobulated tooth at postero-distal border, anterior border with 2-3 spines; carpus with 2 spines; upper surface of palm with one distal spiniform lobule, lower surface smooth. Posterior border of swimming leg with the usual fringing hairs. (Türkay 1995)
Postero-lateral junction of carapace angular or spinous; front indistinctly 3-lobed (sinuous) or flat; posterior border of arm of cheliped with two teeth. (Davie 1999)
Type locality: Ambon, Indonesia.
Range: Andaman Islands (Alcock, 1899a); Japan - Iriomote-jima, Okinawa (Sakai, 1976a); China - Hainan Island (Dai & Yang, 1991); Singapore (Nobili, 1903c, Shen, 1937); Philippines - (Stephenson & Rees, 1967), Iloilo, Panay I. (Stephenson, 1976); Palau (Stephenson & Rees, 1967); Indonesia - Ambon (de Man, 1888d), Java Sea (Stephenson, 1972a); Australia - Dunk Island, Queensland (Stephenson & Campbell, 1959); 30 m.