Adams & White, 1849
Carapace as broad as long, smooth and glabrous except for the epibranchial crests; front protruding, median notch quite clear; antero-lateral borders with 5 teeth of which the first is the largest, following teeth subequal, sometimes 5th smaller. Cheliped merus without teeth; carpus with an internal tooth and 2-3 external granules; palm with 2 weak crests on its upper face ending in granules of which the inner one can be dentiform, lower face smooth. (Türkay 1995)
Antero-lateral border comprising 5 teeth or lobes; carapace as broad as long, with a single epibranchial ridge; front with distinct median notch. (Davie 1999)
Type locality: Eastern Seas.
Range: Red Sea; Madagascar - Ankify (Crosnier, 1962), Nosy Bé (Apel & Spiridonov, 1998); Seychelles (Rathbun, 1911); Persian Gulf (Apel & Spiridonov, 1998); Laccadive Islands; India - Madras, Orissa, Ganjam, and Malabar Coast (Alcock, 1899a), Gulf of Mannar; Sri Lanka; Andaman Islands (Alcock, 1899a); Japan - Manazuru (Sakai, 1935), Sagami Bay and Nagasaki (Sakai, 1939), Sagami Bay (Sakai, 1965b), Sagami Bay, Mikawa Bay, Wagu, Kii Nagashima, Kii Minabe, Tosa Bay, and Nagasaki (Sakai, 1976a), Kii Minabe (Miyake, 1983); South China Sea - Nansha Islands (Dai & Xu, 1991); Philippines - north of Lubang Island (Moosa, 1981, Apel & Spiridonov, 1998); Sulu Archipelago - Jolo (Stephenson, 1972a); Indonesia - near Jakarta and Kepulauan Kai (Leene, 1938), Java Sea (Stephenson, 1972a); Australia - South Australian coast (Miers, 1886), Holbourne I., Bowen, Port Denison, Port Molle, Port Jackson, Newcastle and Roebuck Bay (Stephenson & Campbell, 1960), Sidney (Apel & Spiridonov, 1998); New Caledonia (Moosa, 1996); Vanuatu (Moosa, 1996); intertidal zone to 200 m.