Miers, 1884
The concave margin of each frontal lobe gives the front a quadrilobed aspect. The carapace is not much longer than broad and is subcircular in outline; groups of relatively coarse granules delineate several of the dorsal regions: 1M, the anterior margin of 2M, the neighbouring regions of the antero-lateral margins and the cardiac region. (Davie 1996)
Type locality: Red Sea.
Range: Red Sea (Miers, 1884b); Seychelles - Praslin (Rathbun, 1911), Farquhar (Serène, 1984); Mayotte (Guinot, 1958); Réunion; Mauritius (Bouvier, 1915b, Michel, 1964); Chagos Archipelago (Rathbun, 1911); Palk Strait (Alcock, 1898); Andaman Islands (Alcock, 1898); Taiwan; China - Paracel Islands (Dai & Yang, 1991); Line Islands - Palmyra (Edmondson, 1923).