Sakai, 1936
Supraorbital spines subparallel to each other, bearing one to three accessory spinules; a small spinule on the lateral border of carapace a little behind the anterior branchial spine, which is very sharp. (Türkay 1995)
Type locality: Shimoda, Japan, 28 m.
Range: Japan - Shimoda and off Wakayama (Sakai, 1936c), Sagami Bay (Sakai, 1965b), Sagami Bay, Shimoda, Shima Peninsula, Kii Minabe, and Tosa Bay (Sakai, 1976a), Kushimoto, Kii Peninsula (Miyake, 1983); 15-85 m.