Shell fragile, transparent. Protoconch: 0,5 whorl, with two obvious, narrow central grooves and one peripheral groove just above the suture; transition to the teleoconch marked; last quarter of protoconch with obsolete axial ribs on the peripheral side. Teleoconch: about one whorl; suture well-marked, deeply impressed; whorl strongly angulate; one strong carina at a distance of about 2/3 from the total width of the whorl, measured from the suture of either the dorsal or the ventral side of the shell; one additional strong carina on the periphery; about twenty strong axial ribs between the carinae of the ventral and the dorsal side of the shell, intersecting the peripheral keel; very weak axial pleats between the suture, and the dorsal and the ventral keel respectively; numerous microscopical spiral lirae on the teleoconch, becoming obsolete near the suture. Aperture: subquadrate; peristome continuous; inner lip thin, slightly attached to the periphery of the previous whorl. Colour: transparent, colour¬less. Diam. 0.38-0.45

The presence of the strong axial ribs on the outer side of the ventral and dorsal carina and on the periphery are the features which readily distinguish this species from its congeners.

Type locality. — Republic of Maldives, North Male Atoll, Baros Island