Shell small, biconical, fusiform, much more stout than the other members of the genus. The spire shows very convex whorls, separated from each other by a marked suture and a strong shoulder. – Specimens collected near the Cristo del Circeo, off San Felice Circeo, Lazio, W. Italy. 5-5,5mm.

Sculpture made up of strong orthocline radial ribs almost as wide as their interspaces, crossed by spirals of same strength; the intersections between radials and spirals give rise to strong rectangular tubercles, spiny on the two first adapical rows, weaker anteriorly. Aperture: columella rough; labial margin thin, translucent, devoid of denticles inside; posterior notch marked; anterior siphonal canal rather long, and open. The colour does not vary: it is of a pale cream brown, with a darker band above and below the suture.