(Linnaeus, 1758)
Length of carapace much less than two thirds of its width, its surface clearly tuberculated, clypeiform expansions of carapace with broad teeth, typically developed, ambulatory legs are largely concealed in flexion below this structure; frontal teeth simple, without subdistal accessory teeth at their outer side, median emargination shallow. The longitudinal septum of the prolongated portion of the endostome can be seen extending between the lamellar processes of the first pair of maxillipeds. (Türkay 1995)
Type locality: India.
Range: Red Sea (Galil, 1997a); Gulf of Aden - Djibouti (Galil, 1997a); Socotra Island (Galil, 1997a); Kenya (Galil, 1997a); Tanzania - Bagamoyo (Galil, 1997a), Zanzibar (Lenz, 1905, Galil, 1997a); Mozambique - (Galil, 1997a), Mozambique and Delagoa Bay (Barnard, 1950); South Africa - Durban Bay (Barnard, 1950), Durban and Natal (Galil, 1997a); Seychelles - Farquhar and Seychelles (Rathbun, 1911), St Joseph Atoll, Mahé, Aldabra Island, Passe Gronnet, and Ile Picard (Galil, 1997a); Madagascar - Nosy Bé (Lenz & Richters, 1881), Diégo-Suarez, Ivongo, Ile Sainte Marie, Nosy Bé, Morombe, Tuléar, and Glorieuses Island (Galil, 1997a); Mauritius (Ortmann, 1892, Michel, 1964, Galil, 1997a); Strait of Hormuz (Stephensen, 1945); Persian Gulf - (Alcock, 1896), Janah Island (Galil, 1997a); India - Pamban (Galil, 1997a); Laccadives (Alcock, 1896); Maldives (Alcock, 1896, Galil, 1997a); Chagos Archipelago - Diego Garcia (Galil, 1997a); Sri Lanka (Galil, 1997a); Andaman Islands (Alcock, 1896); Nicobar Islands (Alcock, 1896); Mergui Archipelago (Chopra & Das, 1937); Cocos-Keeling Island (Galil, 1997a); Japan - Okinawa (Stimpson, 1907), Sagami Bay, Shimoda and Nanki Shirahama (Sakai, 1937a), Amakusa (Miyake et al., 1962), from Misaki to coast of Yaeyama-retto, Okinawa (Sakai, 1976a), Ogasawara-shoto (Takeda & Kurata, 1977), Ishigaki-jima (Miyake, 1983), Okinawa-jima and Iriomote-jima (Takeda & Shikatani, 1990), Kii Peninsula and Ogasawara-shoto (Galil, 1997a), Ginowan, Okinawa-jima (Shokita et al., 2000); Korea - Cheju-Do (Sakai, 1937a, Kim, 1973); Taiwan - Tainan (Sakai, 1937a), Su-ao, Chi-lung, and P'eng-hu (Lin, 1949); China - Paracel Island (Chen, 1975), Paracel Islands and Hainan Island (Dai & Yang, 1991); Thailand - Koh Lon Island (Galil, 1997a); Philippines - Cebu (Serène & Vadon, 1981), Mindoro, Davao Gulf and Cebu (Galil, 1997a); Sulu Sea (Dana, 1852); Sulu Archipelago (Ihle, 1918); Palau (Ortmann, 1892, Takeda, 1973d, Takeda & Hayashi, 1973); Borneo - Sabah (Galil, 1997a); Indonesia - Ambon (Miers, 1886), Edam Island, Noordwachter Island and Ambon (de Man, 1888d), west of Celebes (de Man, 1896b), Gaspar Strait (Stimpson, 1907), Java, Waigeo Island, Gisser Island, Ambon, Sulabesi, Lucipara Islands, Nusa Laut, Banda and Kepulauan Kai (Ihle, 1918), Sumatra, Java, Komodo, Sulawesi, Moluccas, Timor, and Irian Jaya (Galil, 1997a); Papua New Guinea - Palm Island, Bismarck Islands (Galil, 1997a); Australia - Yampi Sound, King Sound, North West Cape, Point Cloates, Port Gregory, and Abrolhos Islands (Tyndale-Biscoe & George, 1962), Torres Strait, Brooke Island, off Cairns, Garden Island, Hannibal Island, Magnetic Island, Cockle Bay, Heron Island, Tin Can Bay, and Stradbroke Island (Galil, 1997a); Caroline Islands (Galil, 1997a); Mariana Islands - Saipan (Galil, 1997a); New Caledonia (Takeda & Nunomura, 1976, Galil, 1997a); Fiji (Dana, 1852, Galil, 1997a); Samoa - Upolu, Apia and Viti Island (Galil, 1997a); Tonga - Tongatapu (Dana, 1852, Miers, 1886), Tongatapu and Nukualofa (Galil, 1997a); Hawaiian Islands - Sandwich Islands (Dana, 1852), Honolulu (Miers, 1886), Honolulu and Hilo (Rathbun, 1906), Oahu (Galil, 1997a); Line Islands - Tabuaeran atoll (Galil, 1997a); Marquesas Islands - Nuku Hiva (Galil, 1997a); Society Islands - Tahiti and Tahaa (Galil, 1997a); Tuamotu Archipelago - Takaroa, S. Marutea, Gambier Island, and Mururoa (Galil, 1997a); Clipperton Island (Galil, 1997a); New Zealand (Galil, 1997a); intertidal to 100 m.