The lip is pink, yellow, or orange, darker than shell color (pl IV).

The shape is elliptical to oblong or obovate, moderately to strongly shouldered (pl V bottom).

The parietal callusing is weakly to strongly developed, especially posteriorly, and is absent in type species.

(pl VI/VII) The large, patterned shells with an immersed spire and 4 moderately heavy columellar plications which are not crowded anteriorly, serve to distinguish this group of species.

This genus is restricted to the Caribbean province, where it evolved in the Miocene as a direct offshoot of Prunum.