Its sculpture consists of very fine dense spiral striae, leaving narrow and shallow grooves between them, sometimes nearly obsolete.

Colour: deep purple or reddish-grey, sometimes with a few white dots.

The protoconch is conoidal, consisting of 3 convex spirally striate whorls.

The inner lip is expanded in a callous pad over the umbilical tract.

[2] This marine species endemic to New Zealand and occurs off Auckland and the Campbell Islands.