(Rathbun, 1915)
One tooth behind external orbital angle; front of carapace without a lobe at either extremity. A small pelagic species. (Davie 1997)
Type locality: the open sea west of Lower California, 23°49'N, 127°50'W.
Range: Atlantic Ocean; Madagascar - Mahajanga and Maintirano (Crosnier, 1965); Amsterdam Islands; Japan - Ogasawara-shoto (Takeda & Kurata, 1977); China - Paracel Islands (Chen, 1980, Dai & Yang, 1991); Lincoln Beach, Oregon; Hawaiian Islands - Oahu (Edmondson, 1959); Kermadec Islands; New Zealand.