Dana, 1852
Carapace only slightly broader than long, very convex, surface smooth and glabrous, except for epibranchial crest; front little protruding, median notch reduced; antero-lateral borders with 5 teeth, 2nd to 5th with rounded tips. Cheliped merus without teeth; carpus with an internal tooth and a row of granules on external face; palm with 2 crests on upper border, both ending in a rounded tooth, external face with a little distinct crest, lower face smooth. (Türkay 1995)
Antero-lateral border comprising 5 teeth or lobes; carapace broader than long, with single epibranchial ridge more or less distinct; front broadly triangular and sub-entire; second antero-lateral tooth not broader than third or fourth. (Davie 1999)
Type locality: Fiji.
Range: Red Sea (Nobili, 1906); Mozambique - Delagoa Bay (Barnard, 1947, 1950); Mayotte (Crosnier, 1962); Madagascar - Nosy Bé and Toliara (Crosnier, 1962); Seychelles; Cargados Carajos Islands and Saya de Malha Bank (Rathbun, 1911); Mauritius (Michel, 1964); Chagos Archipelago - Salomon Island (Rathbun, 1911); Laccadive Islands - Kiltán Island (Alcock, 1899a); India; Sri Lanka; Japan - Amami-Oshima (Ortmann, 1893), Misaki (Sakai, 1935), Misaki, Gobo and Nanki Shirahama (Sakai, 1939), Ishigaki-jima (Minei, 1971), Tanabe Bay (Takeda & Koyama, 1974), Sagami Bay, Kii Minabe and Amami-shoto (Sakai, 1976a), Kushimoto (Miyake, 1983), Nagasaki; China - Paracel Islands (Chen, 1975, Dai & Yang, 1991); Taiwan - Lanyu (Ng & Jeng, 1999); South China Sea - Nansha Islands (Dai & Xu, 1991); Indonesia - Roma (Leene, 1938), Padaido Group and Biak Island (Stephenson, 1975); Palau (Takeda & Shimazaki, 1974); Australia - Moreton Bay (Stephenson & Campbell, 1960), Heron Island (Stephenson, 1961), Murray Island; Fiji - (Dana, 1852), Suva (Stephenson, 1972a); Hawaiian Islands; Line Islands - Tabuaeran (Edmondson, 1923); Society Islands - Moorea (Stephenson, 1976); shallow waters.