(de Haan, 1835)
Suborbital ridge in males with a row of 10-16 squarish protuberances; in females it consists of 19-25 granules. Ambulatory legs 1-2 carpi and propodi with thick setae on anterior surfaces. (Türkay 1995)
Type locality: Japan.
Range: Japan - (de Haan, 1835), Tokyo Bay and Nagasaki (Ortmann, 1894a), Amami-Oshima and Okinawa (Stimpson, 1907), Shimoda (Sakai, 1935), Asadokoro, Tokyo Bay, Shimoda, and Ibusuki (Sakai, 1939), Arao City (Miyake, 1961), Sagami Bay (Sakai, 1965b), from Aomori Prefecture to Okinawa (Sakai, 1976a), Amakusa (Yamaguchi et al., 1976), Tokashiki-jima, Iriki-gawa, Kagoshima, Hakata Bay, Muromi, Tatara-gawa, Tsuyazaki, Okayama, Sagami Bay and Miura Peninsula (Sakai K. & Yatsuzuka, 1980), Nanki Shirahama (Miyake, 1983); Korea - Keisho-nando and Cheju-do (Sakai, 1939), Hae-undae, Bangjugpo, Nog Dong, Namweon, Seogwipo, Gapa Island, Daecheon, Anmyeon Island, Inch'on, and Baegryeong Island (Kim, 1973), Pophwan, Cheju-do (Kim & Chang, 1985); near seashore or estuarine.