Shell small, broadly ovate, involute, a heavy and broad callus
spread over each end. Colour milk-white. Adult smooth and glossy; immature shell with fine close spiral punctate grooves. Aperture crescentic, canaliculate at either end. Outer lip thickened and reflected, finely closely denticulate within. Inner lip with a thick callus deposit. In the young there are five columeliar plaits decreasing gradually in size, the least about the centre of the aperture; in the adult, two large, and one small plait alone are visible. Length 2,2; breadth 1,6 mm.
A few specimens, from 8 fathoms, Weary Bay. I also took it, in 15 fathoms, off the Palm islands; and in 17-20 fathoms, off Mast Head Reef.

Generally minute in size, rotund, spire completely involute, white or yellow, smooth and polished. Aperture with a rounded outer margin, commencing on the summit of the shell, varix not heavy, but the margin infolded and thickened, outer lip finely dentate within, rounded anteriorly and without a sinus. Inner margin generally multiplicate, the 2 anterior plications strong and oblique, those above generally weak, often quite within the aperture and invisible from in front.