Shell rather thin, swollen, short-conic, with a greenish-gray periostracum, which is smooth and caducous, whorls about seven, usually more or less eroded, with a chalky-white substratum; sculpture of (on the penultimate whorl, about 40) narrow, sharpish, sigmoid wrinkles, with wider interspaces, obsolete on the base, sparser on the last whorl, and more or less irregular, the whole surface finely, evenly, spirally striated ; suture distinct, not deep; aperture milk-white, wide, ample, the outer lip deeply flexuous behind, slightly thickened, and reflected; body with a wash of glossy white callus; pillar very short, obliquely truncate, moderately callous; canal wide, very short, sharply recurved, with a well-marked fasciole. Long, of shell, 60; of last whorl, 40; of aperture, 29; max. diameter, 35 mm. (Dall.)
TYPE in United States National Museum, No. 107016. Type locality, Station 3502, near the Pribilof Islands, in 368 fathoms.
RANGE. Pribilof and Sannak Islands to Tahwit Head, Washington.