Shell large, thin, swollen, pale olivaceous, with a smooth periostracum over a white chalky layer underlaid by a flesh-colored substratum with about seven whorls; suture appressed, the surface of the whorl sloping rapidly away in front of it to a small sharp carina which marks the shoulder of the whorl, beyond which the whorl is globosely rounded; there is no axial sculpture except incremental lines; the spiral sculpture consists of low, flattish threads, more or less alternated in size, a few between the shoulder and periphery somewhat more prominent than the rest, but not elevated, having wide striated interspaces, while those in front of the periphery are smaller, closer, and pretty regularly alternated in three sizes; aperture wide, white, the body pinkish, the anterior end of the pillar suffused with yellow; outer lip thin, slightly expanded and flexuous; body with a glaze over the pink substratum; pillar straight, its edge gyrate, completely pervious; canal short, wide, recurved, with a faint fasciole; operculum thin, yellowish, with the nucleus sublateral in the posterior third. Long, of shell, 63; of last whorl, 48; of aperture, 37; max. diam., 37 mm. (Dall.)
TYPE in United States National Museum, No. 110537. Type locality, Station 4797, off Dalnoi Point, Kamchatka, in 682 fathoms. RANGE. Western Bering Sea.

Off Dalnoi Point, Kamtschatka, Russia.