Height 75 mm, Width 50 mm

Shell large, solid, broadly-fusiform, from sometimes almost oval to elongate in form, consists of 6.5-7 convex, quickly growing whorls, which are divided by a deep pressed sutura. The profile of whorl usually concave between the sutura and shoulder keel. Spiral sculpture consists of thin riblets, which form secondary ribs, placed on the all shell surface; and 1-3 rounded raised keels on the shoulder and periphery of whorls. Also, there are 7-10 rounded ribs on the shell base. Aperture is wide, occupies about 1/2 of the shell height, white, yellowish or bluish-gray. Inner lip is covered with thin mat white, light-yellowish or grayish callus. Shell is covered with rather thin, velvet, peeling olive or greenish periostracum, which forms short bristles.
[Egorov, 1994]

Shell rather thin, with six whorls, covered by a thick pilose epidermis; whorls flattened or channeled near the suture and with a single strong keel at the shoulder, the surface covered with fine spiral threads crossed by rather prominent lines of growth; pillar short, normally much twisted and the coil pervious for one whorl, but some specimens attacked by annelids have it nearly buccinoid; aperture ample, the body with more or less callus laid over it, the outer lip not reflected; siphonal fasciole rather indistinct; operculum solid, black, rather short, concave, its outline like that of a half-shut fan. Height of shell, 75; max. diam., 50; length of aperture, 47 mm. (Dall.)
TYPE in United States National Museum, Nos. 122674 and 122675. Type locality, Station 3254, in Bering Sea.
RANGE. Okhotsk and Bering Seas, 25-70 fathoms.

Bering and Okhotsk Seas, at depth of 72-200 m. Uncommon.