(Dana, 1852)
The carapace is broad (B/L > 1.5), the surface smooth and glossy or finely granular and stippled. 2M is sometimes longitudinally divided. The ambulatory legs have numerous setae. The carapace surface is smooth and polished, 2M is entire; the breadth of the carapace is equal to 1.55-1.70 times the length. The abdomen of the male has a subtriangular telson, as long as broad measured at the base; segment 6 is subquadrate and as long as broad measured at the base, hardly enlarged distally and with the lateral margins feebly concave. The first pleopod of the male has a dozen long, non-plumose, preapical setae. (Serène, 1984)
Type locality: Reef of Tutuila, Samoa.
Range: Red Sea - Jiddah (de Man, 1881), Sudan (Laurie, 1915), Abulat (Guinot, 1964b); Kenya - Mombasa (Serène, 1984); Zanzibar (Lenz, 1905); Madagascar - Nosy Iranja, Nosy Bé and Fort-Dauphin (Serène, 1984); Iles Glorieuses (Serène, 1984); Seychelles - (A. Milne Edwards, 1873), Praslin and Coëtivy Islands (Rathbun, 1911); Mauritius; Maldives (Guinot, 1962b); Chagos Archipelago (Rathbun, 1911); Sri Lanka (Alcock, 1898; Andaman Islands (Alcock, 1898); Mergui Archipelago (Alcock, 1898); Japan - Yoron-jima, Ishigaki-jima and Taketomi-jima (Sakai, 1976a), Ishigaki-jima (Miyake, 1983); Taiwan; China - Paracel Islands (Dai & Yang, 1991); Indonesia - Noordwachter Island (de Man, 1887d); New Caledonia (A. Milne Edwards, 1873); Kiribati; Samoa - Tutuila (Dana, 1852); Hawaii - (Muraoka, 1998), Honolulu and south coast of Molokai (Rathbun, 1906); Line Islands - Palmyra and Tabuaeran (Edmondson, 1923); Tahiti (Forest & Guinot, 1961); Tuamotu Archipelago.