As Acmaea cingulata Hutton (syn)
Shell oval, conoidal, moderately solid, white to yellowish-brown, with numerous radiating ribs, which are low, rounded, and varying in number from 30 to 50 ; there are usually 10 to 15 primary ribs, and numerous finer riblets in the interstices ; a number of concentric ridges sometimes render the ribs slightly crenate. Colour mostly white, sometimes light brown, the ribs nearly white. Apex at the anterior fourth, oval in shape and convex, mostly dark brown ; anterior slope nearly straight. Inside white, porcellanous, central area white, rarely with a small brown spot underneath the apex ; margin indistinctly crenulate, with a narrow pinkish border. Length, 17 mm. ; breadth, 13 mm. ; height, 6 mm.

New Zealand. Dunedin and Lyttelton (Hutton) ; Lyall Bay (Suter) ; East Cape Lighthouse. On rocks between tide-marks, not common : frequently found on shells of Haliotis.