Shell small, narrowly conic, solid. Sculpture consisting of 3 equidistant cinguli, the uppermost close to the suture, crossed by nearly straight axial riblets, the interstices about as broad as the riblets ; the points of intersection raised into roundish gemmules ; there are about 18 to 20 riblets on the last whorl ; suture margined above by a very fine thread, which continues upon the body-whorl as a fourth keel. Colour yellowish-white. Spire elevated conic, much higher than the aperture ; outlines slightly convex. Protoconch papillate, of 1,5whorls, the first smooth and shining, the remainder distantly plaited. Whorls about 8, regularly increasing, somewhat convex ; base concave and smooth. Suture impressed, margined, sometimes very indistinctly. Aperture vertical, ovate, angled above, produced below into a very short and wide canal with a notched base. Outer lip sharp, sinuated by the spiral sculpture. Columella slightly oblique, rounded and sinuate, truncated below. Inner lip spreading as a very thin callus over the parietal wall. Operculum unknown.
Diameter, 2 mm. ; height, 5 mm.
Type in the Tasmanian Museum, Hob art.
Hab.—Snares, in 50 fathoms (Captain Bollons). Tasmania and Australia.