(Rüppell, 1830)
Carapace smooth, approximately as wide as long, antero-lateral borders without teeth. Rostrum tridentate, median tooth small, strongly deflexed, not visible dorsally. Cheliped palm smooth, fingers strongly downcurved, gaping, hollowed out internally. Second and third pereiopods smooth, almost as long as the chelipeds. (Türkay 1995)
Type locality: Red Sea.
Range: Red Sea (Rüppell, 1830); East coast of Africa; Mozambique - Delagoa Bay (Barnard, 1950); Persian Gulf (Alcock, 1900a, 1901, Stephensen, 1945); Pakistan - Manora Island (Tirmizi & Kazmi, 1991); India; Sri Lanka; Andaman Islands - Port Blair (Alcock, 1900a, 1901); Mergui Archipelago (Alcock, 1900a, 1901); Japan - Gobo, off Wakayama and Nanki Shirahama (Sakai, 1936c), Shima Peninsula and Kii Peninsula (Sakai, 1976a), Nanki Sakai (Miyake, 1983); Korea - Cheju-do (Kim, 1973); Macclesfield Bank (McLay, 1998); Philippines - Jintotolo Channel (McLay, 1993); Thailand; Singapore (Nobili, 1903c); Indonesia - Kepulauan Kai and Damar Island (Ihle, 1913); Australia - Moreton Bay (Campbell & Stephenson, 1970); Chesterfield Islands (McLay, 1993); New Caledonia (McLay, 1993); Hawaiian Islands (Edmondson, 1922); Kermadec Islands - Meyer Island (Chilton, 1911); Easter Island (Garth, 1957a); 0-100 m.