Lamarck, 1818
Tubercles on dorsal surface of carapace conical or squamiform; 4 antero-lateral teeth (including postorbital spine) on carapace. Ventral surface of body and legs smooth. Merus of ambulatory legs with one spine, with two fringes of hair on upper surface; coxa of ambulatory legs with lobe entire. Abdomen with 7th segment of male rounded, of female pointed. (Davie 1997)
Type locality: Mauritius.
Range: Red Sea; Dar es Salaam (Hartnoll, 1975); Mozambique - Delagoa Bay (Barnard, 1950); South Africa - Isipingo, Natal (Barnard, 1950); Indian Ocean (Ortmann, 1894a); Comoros (Crosnier, 1965); Madagascar - Nosy Bé and Fort-Dauphin (Crosnier, 1965); Mauritius (Ortmann, 1894a, Michel, 1964); India - from Bay of Bengal and Arabian Sea (Alcock, 1900b), Kodinar (Chhapgar, 1957); Sumatra - Aceh; Japan - Manazuru (Sakai, 1935), Sagami Bay, Shimoda, Nanki Shirahama, Nagasaki, Northern Daito-jima and Ogasawara-shoto (Sakai, 1939), Hachijo-jima (Sakai, 1954), Sagami Bay (Sakai, 1965b), from Boso Peninsula southward to Ishigaki-jima, Daito-jima, Hachijo-jima and Ogasawara-shoto (Sakai, 1976a), Yamagata Prefecture (Suzuki S., 1979), Kii Minabe (Miyake, 1983), Ginowan, Okinawa (Shokita et al., 2000); Taiwan - (Dai & Yang, 1991), Chi-lung and Lan-Yü (Sakai, 1939), Chi-lung, Nanfangao, and Lan-Yü (Lin, 1949); China - Hong Kong (Stimpson, 1907), Paracel Island (Chen, 1975), Guangdong including Paracel Islands and Hainan Island (Dai & Yang, 1991); Indonesia - Lombok, Semau Island, and Sulabesi (Tesch, 1918a); Australia; Hawaiian Islands - (Stimpson, 1907, Edmondson, 1959), Hawaii, Molokai, Honolulu, and Laysan (Rathbun, 1906); Kermadec Islands - Sunday Island (Chilton, 1911); Chile.