Shell ovate, ventricose, very thin, glossy, of a dark obscure violet, clouded and spotted with grayish white and tawny, particularly at the sutures, where the spots are usually well-defined; whorls six or seven, much rounded, and covered with fine waved lines of growth, and a few minute, depressed spiral lines obsolete on the body-whorl; body-whorl one-third longer than the spire, with eight or nine strong, distant spiral ridges or keels, three or four of which are continued on to the third whorl; mouth as long as the spire, broadish oval, with the interior of a dark chocolate-brown extending over the columella; outer lip thin, entire; columella very dark, glossy, rather straight, with an obsolete plait or fold, which gives to it the appearance of being twice bent; the inner margin is well-raised and considerably reflected; the canal short and rather wide; epidermis very strong, of a greenish horn-color, glossy, with fine distant longitudinal laminae, bearing minute widely separated cilia. Length, 1,5 inch; breadth, nearly 1 inch. (Hancock.)
TYPE in? Type locality, west coast of Davis's Strait.
RANGE. Bering Strait; circumboreal.