Shell rather small, 8-11 mm., rather slender, with a tall spire and a long narrow aperture, gradually tapered to a short unnotched anterior canal. Protoconch broadly conical of about 2 1/2 whorls, the last one obscurely keeled, and sculptured with protractive axial riblets. Outer lip strongly varicose, its outer edge crenulated. No internal apertural denticles or ridges, but a thick parietal callus pad adjoining the sinus, which is broadly rounded, moderately deep and occupies most of the shoulder slope. Adult sculpture clathrate, consisting of narrow axial ribs crossed by strong spiral threads.