Shell cream, elongately acuminated, turreted. Whorls sixteen to twenty, narrow, flatly concave, the centres of which are concentrically grooved; sutures deep. Aperture rounded, lip thin; base pinkish; operculum horny. Size: 2 inches.

This is the largest and strongest of our Screw Shells, easily recognized.

This species is more frequently seen on eastern Victorian shores, and is also recorded from New South Wales and Tasmania.