As Epitonium (Sthenorytis) paradisi:
Shell turbinate, pure white; nuclear whorls and first 2 postnuclear whorls lost; remaining whorls 6, rapidly enlarging, well rounded, sutures deep; axial sculpture of varicose ribs, erect on the upper whorls, somewhat reflected on the lower whorls, expanded to form coronating points on the shoulder, depressed in the suture and confluent near the aperture, with axial Striations on the faces; of these ribs there are 6 on the upper whorls and 10 on the last whorl, in general continuous up the spire about which they make nearly a full turn, the increasing number of ribs occurring as occasional splits in the sutures; aperture round, with a broad face except for a short distance along the body of the whorl; at the lower end of the columella the lip is somewhat depressed and expanded but not forming a basal disk. The type measures: length, 35 mm.; maximum diameter, including varicose ribs, 26.5 mm., not including ribs. 18 mm.

Gulf of California