Extremely variable in colour, shape and size. Shells vary from smooth and round shouldered, to sharply angled and nodulose at the shoulder with spiral grooves and ridges between shoulder and suture. Nodulose shells usually have one row of nodules at the shoulder, occasionally a second row below the shoulder. Base of body whorl usually spirally grooved, faintly in some shells. Outer lip reflected, usually smooth, occasionally toothed posteriorly. Columella shield with central spiral ridge of varying strength and sometimes lirae anteriorly; outer margin straight. Umbilicus open. Colour uniform light brown or fawn, sometimes with four spiral rows of brown blotches or axial streaks. Distribution from Port Stephens, NSW, to Eucla, WA. Also New Zealand and South Africa

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