Distinguished from the species by the high conical form and the strongly nodulous ribs. The shell is solid, oval or oblong, high conical, the height somewhat less than half the length of the shell. Apex at about the front third, more or less denuded. There are about 24 strongly nodulous radiate ribs, crossed by strong concentric lines of growth. As in the species, a white star or white bands extending to the margin are present, and the colour is yellowish-red. The anterior slope is straight or slightly convex. Interior silvery-white ; central area white, sometimes tinged with light brown.
Length, 27 mm. ; breadth, 21 mm. ; height, 12 mm.
Type in my collection.
Hab.—Cook Strait; Banks Peninsula (Iredale) ; Bay of Islands.