Shell small, solid, white under an olivaceous periostracum, having five (decollate) whorls, suture distinct, bordered by a rounded ridge on each side; surface dull; spiral sculpture of a prominent nodulous peripheral ridge which is the anal fasciole, with two smaller ridges in front of it with wider interspaces; in front of the first of these the suture is laid; the space between this and the second is more or less channeled, but these two ridges are not nodulous; in front of these four or five obscure threads appear on the canal; axial sculpture of strong retractive wrinkles at the suture, which become arcuate nodulous riblets on the fasciole and dwindle protractively in front of it; there are also more or less obvious incremental lines; aperture moderate, simple, the axis pervious, the columella short, attenuated in front; canal short, slightly recurved, operculum narrow, with apical nucleus. Height of shell, 12 mm; of last whorl. 9 mm: diameter. 5 mm

Type location: Mexico: Cape San Quentin. Lower California, in 359 fathoms