de Haan, 1841
Carapace not contricted behind the external orbital angles, which are prominent but not projecting beyond the tip of front, distance between the tips of the external orbital angles less than one third of extreme width of carapace; antero-lateral borders with one spine. Carpus of cheliped armed with two spines. Second and third pereiopods smooth and shiny, fourth pereiopod with flattened dactyl. (Türkay 1995)
Type locality: Japan.
Range: Japan - (de Haan, 1841), Sagami Bay (Ortmann, 1892), east of Boshu, Inubo-zaki, Suruga Bay, Lake Hamana, Shima, Owase, Siono-misaki, Tosa Bay, Ashizuri-misaki, Bungo Strait, Goto-retto and Toyama Bay (Yokoya, 1933), Manazuru (Sakai, 1935a), Sagami Bay, Nanki Shirahama, Tosa Bay and Nagasaki (Sakai, 1937a), Amakusa, Toyama and Niigata (Miyake et al., 1962), Sagami Bay (Sakai, 1965b), Sagami Bay, Kii Minabe, Kii Nagashima, and Tosa Bay (Sakai, 1976a), Yamagata Prefecture (Suzuki S., 1979), off Ashizuri-misaki (Miyake, 1983), Hakodate Bay (Komai et al., 1992), Sagami Bay, Mikawa Isshiki, Kii Minabe, and Tosa Bay (Muraoka, 1998); Taiwan; China - Guangdong (Dai & Yang, 1991); South China Sea - Nansha Islands (Chen H. & Xu, 1991); Philippines - near Lubang Island (Serène & Vadon, 1981), north of Lubang Island and Verde Island Passage (Goeke, 1986); Australia - New South Wales coast (Ward, 1933b), near Eden, N.S.W. (Griffin, 1972), Cape Moreton to Bass Strait, Bluff Pt, near Geraldton, to Rottnest Island, W.A.; New Caledonia (Ortmann, 1892); Fiji; Hawaiian Islands; New Zealand - Cook Strait (Richardson & Krefft, 1949), Bay of Plenty (Powell, 1949), northern New Zealand (Muraoka, 1998); 27-384 m.