Shell small, solid, whitish, acute, fusiform, with one and a half nuclear and six subsequent whorls; nucleus with a minute apex and a swollen smooth globular succeeding whorl; these are followed by a peripherally keeled whorl, the subsequent turns developing two and then three spiral flattish spiral cords, including the peripheral one and in front of it, while behind the keel the surface slopes flatly up to the appressed suture, only interrupted by obscure ridges due to the axial sculpture; on the last whorl in front of the anal fasciole there are about a dozen similar cords extending to the end of the canal with about equal channeled interspaces, the posterior two or three cords more or less nodulous at the intersections; axial sculpture of about 10 more or less prominent riblets beginning in front of the fasciole and extending slightly over the periphery on the last whorl becoming obsolete; the incremental lines not conspicuous; aperture narrowly ovate, the outer lip somewhat varicose with a large shallow rounded anal sulcus close to the suture; within both inner and outer lips are smooth and moderately callous; canal short, wide, slightly recurved. Height of shell, 10.5 ; of last whorl, 6; diameter, 4 mm. (Dall.)
TYPE in United States National Museum, No. 211326.

Type locality, Station 2902, off Santa Rosa Island, California.
RANGE. Off Esteros Bay, California, to Coronado Islands, Mexico.