(White, 1847)
The dorsal surface of carapace is very flat and the granules are mostly worn out, but the surface near the fronto-orbital border is extremely vaulted down and covered with coarse granules.
The frontal lobes are much produced near the median notch, the free margin being beaded with granules. The antero-lateral borders are shorter than the postero-lateral, the former markedly arcuate and obscurely 4-lobed, the posterior two lobes being tooth-tipped; the latter more or less convex and are only finely granulated. The posterior border bears a characteristic median V-shaped invagination. Chelipeds are extremely unequal, and are covered with coarse granules and short yellowish hairs. (T. Sakai, 1939: 483)
Type locality: Corregidor Island, Philippines.
Range: South Africa - (Guinot, 1976), Durban (Krauss, 1843, Stebbing, 1920b), Durban, Isipingo and Impengazi, north of St. Lucia Bay (Barnard, 1950); Kenya - Mombasa (Serène, 1984); Madagascar - Fort-Dauphin (Guinot, 1976, Serène, 1984); Iles Glorieuses (Serène, 1984); Sri Lanka - Belligam (Guinot, 1976); Andaman Islands (Alcock, 1898); Mergui Archipelago (Alcock, 1898, de Man, 1887b); Japan - Ogasawara-shoto (Odhner, 1925), Sagami Bay, Izu Peninsula and Gobo (Sakai, 1939), Sagami Bay and Kii Province (Sakai, 1965b), Sagami Bay, Izu Peninsula, Kii Nagashima, Kii Peninsula, and Ogasawara-shoto (Sakai, 1976a); Taiwan; Philippines - Corregidor Island (White, 1847f); Hawaiian Islands - Maalaea Bay, Maui (Edmondson, 1931).