Author: Ishiyama & Ishihara, 1977
FBname: Purple-black skate
Remark: This species is a synonym of <i>Bathyraja matsubarai</i> (Ishiyama, 1952) after Last et al. (2016: Ref. 113540)
Comments: Oviparous (Ref. 50449).  Eggs have horn-like projections on the shell (Ref. 205).