(Fabricius, 1798)
Carapace pubescent; transverse granular lines on frontal, protogastric, and mesogastric regions, epibranchial line interrupted only at the cervical groove, cardiac and mesobranchial regions with 3 granular patches; front with 6 teeth, medians and submedians truncate with broader borders opposed each other, laterals triangular and distally rounded; antero-lateral borders with 6 teeth, first to fifth relatively low and quadrate to rounded, first with concave lateral border, fifth the largest, sixth the smallest and most acute; postero-lateral junctions angular or eared. Antennal flagellum excluded from orbit. Cheliped granulate and with squamiform markings; merus with 2-3 strong spines on anterior border, posterior border granulate; carpus with a strong internal spine, outer border with 3 spinules; palm with 2 spines on upper border. Merus of swimming leg with a strong subdistal posterior spine, propodus denticulated on posterior border. (Türkay 1995)
Antennal flagellum excluded from orbital hiatus; posterior border of cephalothorax straight, forming angular or eared postero-lateral junction; last antero-lateral tooth shorter than any of preceeding teeth; lateral border of penultimate segment of male abdomen strongly convex. (Davie 1999)
Type locality: unknown.
Range: Madagascar - north-west coast and banc de Pracel (Crosnier, 1962); India - mouth of Hugli and Coromandel coast (Alcock, 1899a); Arakan coast (Alcock, 1899a); West Malay Peninsula - Thailand (Stephenson, 1972a); Japan - Kochi and Tokyo Bay (Ortmann, 1893), Tanabe (Yokoya, 1933), Tateyama Bay, Shimoda, Gobo, Wakayama and Nagasaki (Sakai, 1939), Tokyo Bay, Sagami Bay, Shimoda, Mikawa Bay, Wagu, Kii Nagashima, Kii Minabe, Tosa Bay, and Nagasaki (Sakai, 1976a), Tanabe Bay (Miyake, 1983), Oshima Passage, Amami-Oshima (Takeda, 1989), Tateyama, Shimoda, Kii Minabe, Tosa Bay, and Yoron-jima (Muraoka, 1998); Taiwan - Tingch'ieting (Lin, 1949), Kaohsiung Province, Tung-kang, and I-lan Province (Huang & Yu, 1997); China - Hong Kong (Alcock, 1899a, Stimpson, 1907, Shen, 1934), Tsimei, Fujian Province (Shen, 1940b), Guangxi, Guangdong, and Fujian (Dai & Yang, 1991); South China Sea - Nansha Islands (Dai & Xu, 1991); Gulf of Thailand; Malaysia - Kota Baharu, Kelantan (Lanchester, 1902); Singapore (Nobili, 1903c, Shen, 1937, Stephenson, 1972a); Philippines - Manila Bay and north of Lubang Island (Moosa, 1981); Indonesia - Arafura Sea (Miers, 1886), Java (Alcock, 1899a), south coast of Timor, Java Sea and east of Sumatra (Leene, 1938), Sunda Strait (Stephenson, 1972a); Australia - Bowen and Platypus Bay (Rathbun, 1923a), Mappoon, Magnetic I., Platypus bay, Bowen and Exmouth Gulf (Stephenson et al., 1957), Dampier Archipelago and Onslow (Stephenson, 1961), Moreton Bay (Stephenson & Rees, 1968b, Campbell & Stephenson, 1970), Gulf of Carpentaria to Bowen, Queensland; 10-50 m.