Shell small, thin, white under a light-green periostracum, of about seven whorls; the apex apparently blunt, but always more or less eroded; the nepionic whorls with a few spiral grooves, the following whorl or two with about sixteen rather prominent short ribs, most prominent at the periphery, with narrower interspaces crossed by fine spiral striae with wider interspaces; the ribs rapidly become obsolete and on the last three whorls are absent, the surface being then only marked by very arcuate incremental lines, the striae becoming obsolete, except on the base near the canal where there are a few coarse spirals; aperture short-ovate, the outer lip thin, sharp, the body erased, the canal short, wide, slightly recurved, the pillar gyrate, minutely pervious; the operculum with a sub-spiral nucleus. Length of five whorls (the apex being eroded), 21; of last whorl, 14; maximum diameter, 10 mm. (Dall.)
TYPE in United States National Museum. Type locality, off Tillamook Bay, Oregon, in 786 fathoms.
RANGE. Tillamook Bay, Oregon, to Monterey, California, 786-881 fathoms.