(Weber, 1795)
Carapace about 2.5 times as broad as long, surface uneven, regions not very well defined, a rather deep groove extends from the median region to the base of the second antero-lateral tooth; front entire, deflexed; second antero-lateral tooth much smaller than first. Eyestalk without pterygoid expansions. Chelipeds asymmetrical, right slightly heavier than left; merus with 3 spines on anterior and 2 on posterior border; carpus with exterior tooth; distal portion of inner surface of palm bearing a spinule. (Türkay 1995)
Carapace broad, breadth ca. 2.5 times length, front entire, deflexed; eyestalks without wing-like expansions distal portion of inner surface of palm of cheliped bearing a spinule. (Davie 1999)
Type locality: "Oceano Indico", mainly collected in Tranquebar, south-east India (Fransen et al., 1997: 225).
Range: Red Sea (Nobili, 1906, Apel & Spiridonov, 1998); Gulf of Aden - Aden Harbour (Apel & Spiridonov, 1998); South Africa; Madagascar - Mitsio, Nosy Bé and baie de Narendry (Crosnier, 1962); Mauritius (Michel, 1964); Strait of Hormuz (Stephenson, 1945, Apel & Spiridonov, 1998); Gulf of Oman (Stephenson, 1945, Apel & Spiridonov, 1998); Pakistan; India; Nicobar Islands - Nancowry Harbour (Stephenson, 1972a); West Malay Peninsula - Thailand (Stephenson, 1972a); West Sumatra - Padang Harbour (Stephenson, 1972a); Japan - Nanki Shirahama (Sakai, 1939), Sagami Bay (Sakai, 1965b), Nagasaki (Stephenson, 1972a), Sagami Bay, Kii Nagashima, Kii Minabe, and Tosa Bay (Sakai, 1976a), Tanabe (Miyake, 1983), Okinawa; Taiwan - Chi-lung, Lu-kang, and Tingch'ieting (Lin, 1949), T'ai-chung, Kaohsiung, and I-lan Provinces (Huang & Yu, 1997); China - Guangxi and Hainan Island (Dai & Yang, 1991); Thailand; Malaysia - Terengganu (Stephenson, 1972a); Singapore (Nobili, 1903c, Shen, 1937); Philippines - Manila Bay (Stephenson, 1972a, Moosa, 1981), Cebu; Palau (Sakai, 1939, Takeda & Shimazaki, 1974); Indonesia - Dobo, Jakarta, Bribes, and east of Sumatra (Leene, 1938), Sunda Strait, Bantam Bay and Java Sea (Stephenson, 1972a); Australia - Moreton bay, Southport, Morris Island and Exmouth Gulf (Stephenson & Campbell, 1960), Moreton Bay (Campbell & Stephenson, 1970); Hawaiian Islands - Honolulu (Miers, 1886, Sakai, 1939), Honolulu, Heeia, Mauna Loa, and Hilo (Rathbun, 1906); Tuamotu Archipelago; 10-70 m.