Steromphala adansonii

The narrowly umbilicate shell has a conical shape.

Its color is maroon or deep brown, with longitudinal undulating flames of white, continuous or interrupted into spots on the base.

The elevated spire is conoidal and contains 6 to 7convex whorls, traversed by numerous spiral striae.

The large body whorl is dilated and subangulate at the periphery.

The base of the shell is convex, concentrically finely lirate, each ridge divided by a central impressed line.