Stimpson, 1857
Carapace smooth, without tubercles or spines; regions generally ill defined except branchial and cardiac ones, hepatic lobe strongly produced outwards and markedly convex; supraorbital eave generally unarmed, sometime with minute spinules along margin; rostrum deeply divided by a V-shaped notch, apically rounded, most of the margin spinulous, rostral spines very short, rounded apically. Basal antennal article unarmed. Ischium and merus of third maxilliped generally smooth, spine-rows along inner edges present. Cheliped of adult male long, robust, hairy; merus subtrigonal to subcylindrical and very robust, carpus subcylindrical, chela compressed. Dactyls of first two pairs of ambulatory legs slender, those of last two pairs strongly falcate. (Türkay 1995)
Type locality: Port Jackson, Australia.
Range: South Africa - Durban Bay (Barnard, 1950); Mozambique - Lourenço Marques (Barnard, 1950, Griffin, 1974); Persian Gulf (Stephensen, 1945); Pakistan - Jiwani and Karachi (Tirmizi & Kazmi, 1991); India - Orissa coast and Palk Strait (Alcock, 1895a), Pamban Passage (Griffin & Tranter, 1986a); Sri Lanka (Tirmizi & Kazmi, 1991); Andaman Islands (Alcock, 1895a); Gulf of Martaban (Henderson, Tirmizi & Kazmi, 1991); Japan - Munakata-Oshima (Griffin, 1970e), Sagami Bay, Kii Peninsula and Nagasaki (Sakai, 1938a, 1976); Korea - Yeosu (Kamita, 1941); Taiwan Strait (Griffin & Tranter, 1986a); Gulf of Thailand (Rathbun); Singapore (Griffin & Tranter, 1986a); Indonesia - Jakarta, Java Sea, Selat Sape, Ambon, Seram, Kepulauan Kai and Kepulauan Aru (Griffin & Tranter, 1986a); Australia - Port Jackson (Stimpson, 1907), Cape Jaubert (Rathbun, 1924c), Masthead Island, Port Stephens, Port Jackson, Sydney, and Roebuck Bay (Griffin & Yaldwyn, 1965), Moreton Bay (Campbell & Stephenson, 1970), Port Jackson (Haswell, 1880b, c, Griffin, 1972); low tide to 90 m.