Shell small, rather thin, ovate-fusiform. Colour buff, clouded with pale brown on the periphery. Whorls six, including two of the protoconch. Sculpture: The whole shell is over-run with spiral flat-topped cords, which become gradually smaller and closer on approaching the anterior end ; twenty-five of these occur on the last whorl, of which eight ascend the penultimate; the radials are curved delicate riblets, tapering upwards, and vanishing before reaching the summit of the whorl ; these riblets disappear on the last whorl; the penultimate carries about twenty-five. Aperture wide; sinus a slight sigmoid flexure, the outer lip thin, curved forward; deep within are fifteen short spiral lyrae; two small plications on the columella; canal short and broad. Length 6 mm., breadth 2.7 mm.

This form was at first mistaken for M. alba. It is, however, much nearer to the fossil M. daphnelloides, of which it may be a variety, differing by a more pointed protoconch, less prominent plications on the columella, and finer, closer riblets.

Australia. New South Wales and Victoria.