Latreille, 1828
The lateral margins of the carapace have a defined epibranchial spine or tooth. The frontal margin is cut into four teeth or lobes more or less projecting; a deep antennal sinus separates the lateral frontal lobe and the internal superior orbital angle. The inferior margin of the cheliped palm is smooth (or sometimes very feebly serrulated in tigrina). The teeth of the front are blunt or lobed; the summits of the submedians reach and generally pass the level of the lateral teeth. The carapace is without regularly distributed spots, specks or lines of colour. The antero-lateral margins of the carapace are convex and diverge backwards between the external orbital angle and the epibranchial tooth. The cheliped palm has the external surface naked; the superior margin is rounded in transverse section. The front is less projecting and the antennal sinus less deep. The external orbital angles and the epibranchial teeth are subacute. The merus of the fifth pereiopod is 2.3 times longer than broad. The colouration is a uniform orange-yellow. (Serène, 1984)
Type locality: Red Sea.
Range: Red Sea (Latreille, 1828, Heller, 1861, Castro, 1996, 1999a); Somalia - Gesira (Castro, 1999a); Kenya - Ras Iwatine (Castro, 1999a); Zanzibar (Hilgendorf, 1869, Castro, 1999a); Tanzania (Nobili, 1905); Mozambique - Jangamo and Coconut Bay (Castro, 1999a); South Africa - KwaZulu-Natal (Castro, 1999a); Europa Island (Lenz, 1910); Mayotte (Serène, 1984, Castro, 1996. 1999a); Madagascar - Iles Glorieuses, Nosy Bé and Tuléar (Serène, 1984, Castro, 1996, 1999a); Seychelles - Seychelles, Praslin and Coëtivy Islands (Rathbun, 1911), Farquhar and Praslin (Serène, 1984), Mahé, Remise Island, Astove Island and Farquhar Islands (Castro, 1996), Aldabra Island, Astove Island, Farquhar Island, Praslin, Remire Reef, Mahé, Aride Island and St. François Atoll (Castro, 1999a); Saya de Malha Bank (Castro, 1999a); Réunion (Serène, 1984, Castro, 1996, 1999a); Mauritius (Bouvier, 1915b, Castro, 1996, 1999a); Laccadive Islands (Sankarankutty, 1961); Maldives - (Sankarankutty, 1966, Garth, 1971a), Addu Atoll (Castro, 1996), Addu Atoll and Miladunmadulu Atoll (Castro, 1999a); Sri Lanka - (Alcock, 1898), Galle (Castro, 1999a); Chagos Archipelago - Salomon, Peros Coin and Egmont (Rathbun, 1911), Speakers Bank (Castro, 1999a); Andaman Islands (Alcock, 1898, Sankarankutty, 1962); Nicobar Islands (Heller, 1865, Alcock, 1898); Cocos Island (Tweedie, 1950b, Castro, 1999a); Christmas Island (Calman, 1909); Japan - Tosa Bay (Sakai, 1939), Yoron-jima, Ishigaki-jima and Taketomi-jima (Sakai, 1976a), Amami-Oshima, Yoron-jima and Ishigaki-jima (Muraoka, 1998), Ginowan, Okinawa (Shokita et al., 2000); China - Paracel Island (Chen & Lan, 1978), Hainan Island and Paracel Islands (Dai & Yang, 1991); Philippines - Davao Gulf (Ward, 1941); Sulu Archipelago (Dana, 1852); Guam (Castro, 1996, Castro, 1997a); Indonesia - Java, Ambon, Amurang, and Talisei Island, Sulawesi (Castro, 1999b); Chesterfield Islands (Castro, 1997a); New Caledonia (A. Milne Edwards, 1873, Castro, 1997a); Gemini Seamount (Castro, 1997a); Tuvalu; Hawaiian Islands - (Rathbun, 1906), Sandwich Island (Dana, 1852); Line Islands - Palmyra (Edmondson, 1923); Marquesas Islands - Nuku Hiva (Jacquinot & Lucas, 1853, Castro, 1997b), Ua Huka, Hiva Oa and Fatu Hiva (Castro, 1997b); Society Islands - Tahiti (Sendler, 1923), Bora-Bora (Rathbun, 1907), Moorea and Tahiti (Castro, 1996), Bora-Bora, Tahiti, Moorea and Raiatea (Castro, 1997b); Tuamotu Archipelago - Makemo (Rathbun, 1907), Takapoto Atoll (Castro, 1996), Makemo, Tikehau, Pukapuka and Takapoto (Castro, 1997b); Easter Islands; Mexico - Acapulco (Faxon, 1895, Buitendijk, 1950), María Madre Island, Clorión and Socorro Islands and Acapulco (Rathbun, 1930), Arena Bank, Gulf of California (Crane, 1937), Clarión Island, Zihuantanejo, Acapulco and Guatulco (Crane, 1947), Espíritu Santo and Isabel Islands (Garth, 1960), Cabo San Lucas (Brusca, 1973), Socorro Island (Luke, 1977), Cabo San Lucas, Bahía Los Frailes and Bahía Pulmo, Gulf of California (Brusca, 1980), Mazatlán (Van der Heiden & Hendrickx, 1982), Punta Raza, Nayarit (Hendrickx & van der Heiden, 1983), Islas Marías and Bahía Chamela (Hernández-Aguilera et al., 1986), Bahía de la Paz, Espíritu Santo Island and Mazatlán (Rodríguez de la Cruz-Ramírez, 1987), Santa Catalina, Santa Cruz, San José, Espíritu Santo and Cerralvo Islands (Villalobos-Hiriart et al., 1989, Lira-Fernández, 1992), Clarión and Socorro Islands, Revillagigedo Islands (Garth, 1992), Islas Marías (Hernández-Aguilera & Martínez-Guzmán, 1992), Bahía Candeleros, Espíritu Santo Island, Isabel Island, Rincón de Guayabitos, Clarión Island, Acapulco and Tangola-Tangola Bay (Castro, 1996); Clipperton Island (Hertlein & Emerson, 1957, Garth, 1965, Castro, 1996); Cocos Island (Boone, 1927); Costa Rica - Culebra, Port Parker, Gulf of Nicoya and Uvita Bay (Crane, 1947), Port Culebra (Castro, 1996); Panama - Pearl Island (Smith, 1869, A. Milne Edwards, 1881), Taboga and Tabogilla Islands (Rathbun, 1930), Taboga and Coiba Islands (Finnegan, 1931), Bahía Honda (Crane, 1947), Pearl Island (Garth, 1948), Jicarón, Ladrones and Callada Islands (Luke, 1977), Gulfs of Chiriquí and Panamá (Huber, 1985), Guayabo Chiquito, Uva Island, Contadora Island, Tabogilla Island, Urabá Island and Taboga Island (Castro, 1996); Colombia - Gorgona Island (Finnegan, 1931, Garth, 1948, Prahl et al., 1978, 1979, Castro, 1982), Gorgona Island and Port Utria (Castro, 1996); Ecuador - La Plata Island (Garth, 1948, Castro, 1996); Galapagos Islands (Boone, 1927, Schmitt, 1933, Hult, 1938, Garth, 1946, Holthuis, 1979, Castro, 1996).