When viewed from the apex, the contour of the spire whorls is not uniformly curved, but polygonal, and septangulate in the type.

They have a central angulation, provided with a stout, rounded cord, and are constricted at the linear sutures.

In the body whorl, below these, arising at the suture is a stout cord forming a second angulation, below which the base is markedly concavely onstricted[check spelling], and has about ten lirae, diminishing in size anteriorly.

The outer lip is thin, simple, crenulated, and toothed by the spirals.

Very fine crowded axial striae, corresponding with the sinuosity of the outer lip, cross the whole surface except the primary spirals.