Type locality. Okhotsk Sea, 51* 10'N, 154°17'E, 583 m.
Distribution. Off Hitachi in Ibaraki Prefecture on Pacific coast, and off Sado Island in Sea of Japan, both northwards to eastern Okhotsk Sea; 418-538 m [480 m]. Material examined. WA06-H480 (7+10e).
Remarks. The present material differs from the holotype and other specimens from the Okhotsk Sea (e.g. Kantor and Sysoev, 2006: pl. 112, fig. G), as well as those from the Sea of Japan (Bogdanov and Ito, 1992: figs. 3a-g; Hasegawa et al. in Okutani, 2000: pl. 325, fig. Turridae-169), in having much finer spiral sculpture, but otherwise agrees in overall shell characters, such as the triangular-shaped body whorl with a tapering siphonal canal, and distinct sculpture consisting of thick axial ribs and fine but distinct spiral cords of regular thickness. However, it also resembles several other possibly related taxa, including C. hinae (Okutani, 1966) and C. delicata (Okutani, 1964) as mentioned below, and more detailed comparison will be necessary to clarify their taxonomical relationships.