de Man, 1889
The carapace has neither traces of teeth nor a crest at the epibranchial angle marking the junction of the antero- and postero-lateral margins. The chelipeds have the crest on the superior margin blunt or absent. The carapace has the dorsal surface strongly convex both longitudinally and transversely and entirely granular; it is transversely oval in outline; the antero-lateral margins are without a crest and form a regular convexity with the postero-lateral margins. The chelipeds have the apices of the fingers blunt and the cutting margin is regularly dentate. The colouration is white-grayish-yellow with a large reddish spot on the cardio-gastric region. (Serène, 1984)
Type locality: Mauritius.
Range: Red Sea - Perim (Nobili, 1906); Gulf of Aden - Obock (Nobili, 1906); Mauritius (de Man, 1889, Serène, 1984); Japan - Wakayama (Sakai, 1939), Kii Nagashima, Kii Minabe and Tosa Bay (Sakai, 1976a), Kushimoto (Miyake, 1983), Wagu and Kii Minabe (Muraoka, 1998); 20-40 m.