(Rathbun, 1907)
The carapace is convex fore and aft, thickly covered with minute granules, being well sculptured; 2M is incompletely subdivided, of which the inner lobule is continuous with 1M; two broad transverse furrows are extended from the posterior two teeth of the antero-lateral borders. The front is wide and strongly deflexed, bearing a small median sinus. The antero-lateral border is provided with four teeth in addition to the external orbital angle and with three shallow cavities on the upper surface between each tooth; otherwise a still smaller but deep cavity is placed just behind the external orbital angle somewhat at lower level.
The chelipeds are unequal, short and stout; the upper surfaces of the carpus and palm are roughened and deeply sculptured by the ridges and depressions; the outer surface of the larger palm is provided with some longitudinal rows of granules, while that of the smaller palm is reticulated by some prominent longitudinal and many short transverse rows of granules; the fingers are short and crested on the upper borders of the movable ones; in the larger chela the cutting edges of the fingers bear some large blunt teeth, being not fitted at the tips, while those of the smaller one are provided with small teeth and crossed at the tips. The ambulatory legs are finely granulated on the upper border of the merus; the carpus and propodus are more or less distinctly bicarinate on the upper borders and surfaces. (Takeda & Miyake, 1968a: 2)
Type locality: Fakarava, Tuamotu Archipelago.
Range: Kenya - Mombasa (Serène, 1984); Japan - Okinawa-jima and Ishigaki-jima (Takeda & Miyake, 1968a), Yoron-to and Taketomi-jima (Sakai, 1976a); Australia - North West Island, Queensland (Ward, 1933a); Wake Island (Edmondson, 1925); Kiribati - Aranuka and Apamama (Balss, 1938a), Aranuka (Guinot, 1962a); Hawaiian Islands - Maui and Oahu (Edmondson, 1931); Tuamotu Archipelago (Rathbun, 1907).