Shell thin, inflated, five-whorled, pinkish, with a thin dehiscent epi¬dermis, fine wavy spiral striae, strongly recurved canal, and widely reflected outer lip. Spire very short, whorls irregularly ribbed near the shoulder or sometimes having imbrications like a Trophon in place of ribs; axis nearly pervious. Length of aperture, 70; of shell, 100; breadth, 63 mm. (Dall.)
TYPE in United States National Museum. Type locality, Station 3252, off Unimak Island, Bering Sea, in 15-121 fathoms. RANGE. Known only from type locality.