Female shell of moderate size, acute, with a distinct not constricted suture and seven rounded whorls exclusive of the (lost) nucleus; shell of a warm buff color, the thin periostracum dehiscent; axial sculpture of on the upper whorls, about a dozen low obscure ribs only apparent behind the periphery and absent on the last whorl; the lines of growth are hardly perceptible; spiral sculpture of very fine close threads, raised slightly into fasciculate bands of five or six threads, the interspaces more distinctly defined on the base than behind the periphery; this sculpture covers the whole shell; the aperture wide, the margin in the type-specimen deeply sulcate behind, hardly reflected, patulous in front; body erased, -pillar-nearly straight; canal very short, wide, sharply recurved with a feeble fasciole. Height of shell, 65; of last whorl, 45; diameter, 35. (Dall.)
TYPE in United States National Museum, No. 223098. Type locality, United States Fish Commission Station 3305, southwest of Hagmeister Island, Bering Sea.
RANGE. Pribilof Island, Bering Sea, to Queen Charlotte Islands.

Arctic Russia. Bering Sea, southwest of Hagmeister Island.