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(A. Milne Edwards, 1873)

Carapace with orbits strongly oblique; front broad, narrowest below eyestalk bases; antero-lateral margins absent, exorbital tooth very acute and produced, directed antero-laterally. Palm of major cheliped with moderate tubercles in upper part of center of inner face, oblique ridge moderate, its largest tubercles either on apex or more distally; outer face with a small, shallow irregular hollow with indefinite edges at base of immovable finger; small cheliped in both sexes with merus posteriorly flattened, armed with tubercles arranged in a supraventral row that curves up distally, gape at base narrower than width of immovable finger, decreasing distally, with a few strong serrations in distal half. Horny terminal endpiece of male first pleopod tubular, with extremely narrow flanges on both sides; palp long. (Türkay 1995)

Type locality: New Caledonia.
Range: Sumatra - ? (Nobili, 1899), Simeuluë Island (Tweedie, 1937); Singapore (Ortmann, 1894a); Japan - Ishigaki-jima and Iriomote-jima (Sakai, 1976a), Iriomote-jima (Crane, 1975); Taiwan (Dai & Yang, 1991); Philippines - (Estampador, 1937, 1959), Davao Gulf (Ward, 1941), Zamboanga, Davao Gulf, Negros, Panay, Palawan, and Mariveles, Luzon (Crane, 1975); Sulu Archipelago - Tawitawi and Jolo (Crane, 1975); Borneo - Labuan (Crane, 1975); Indonesia - Ambon (de Man, 1891), ? eastern coast at Batu Bahra, Sumatra (de Man, 1892b), Surabaya and Trengglunga, Java, Ambon and west Ceram (Crane, 1975); New Guinea - near Biak and near Madang (Crane, 1975); Palau (Sakai, 1936, Miyake, 1938, Crane, 1975); Yap Island; ?Australia - Great Barrier Reef (Crane, 1975); New Caledonia - (A. Milne Edwards, 1873), near Nouméa (Crane, 1975).

Uca triangularis