(de Haan, 1833)
Big size, 150 mm width. Crab very spiny and very hairy, a little Pilumnus-like; hairs long and numerous, but without concealing the surface, and becoming scant in large males. Antero-lateral border with four long primary spines, the first at the orbital angle; behind each of them, in the interspaces, a subsidiary spine, the first below the marginal line; above and subparallel to this row, an irregular row of seven spines; on the dorsal surface, several spines: in particular three on the epibranchial region, two on the subhepatic region, and nine on the gastric region; postero-lateral regions rough, with short spinules. Frontal margin bilobed, each lobe with six acute spines. Armature similar on both chelipeds, very strong, consisting of long curved spines; becoming obsolete in senile males. Ambulatory legs with slenderer but numerous curved spines and spinules on all articles. (Guinot 1998)
Type locality: Japan.
Range: Japan - (de Haan, 1833), Sagami Bay (Parisi, 1916), Shimoda (Sakai, 1935, 1939), Sagami Bay (Sakai, 1965b), Sagami Bay, Shimoda, Wagu, Kii Nagashima, Kii Minabe, Tosa Bay, and Nagasaki (Sakai, 1976a), off Tori-shima (Takeda & Kurata, 1976b), Nanki Shirahama (Miyake, 1983), Okinawa Trough (Baba, 1986); Korea - Zenra-nando and Keisho-nando (Kamita, 1941), Cheju-do and Pusan (Kim, 1973); Taiwan; Australia - west of Eucla, Western Australia (Rathbun, 1923a), New South Wales; New Caledonia (Guinot & Richer de Forges, 1981a); 30-540 m.