(Original description) The white, small shell is roundly shouldered with a rather coarse sculpture on the spire, which becomes obsolete on the body whorl.

The axial sculpture consists of (on the penultimate whorl 13) rounded irregular ribs with subequal interspaces.

The ribs are nodulate by the intersection of three or four rather strong spiral cords with narrower interspaces.

On the body whorl the ribs are obsolete and the spiral sculpture feebler, flatter, and with occasional intercalary smaller threads.

[2] Tis marine species occurs from Sitka Island, Alaska to Puget Sound.