The skin is uniformly granulose to warty. The skin is uniformly and finely granulose. It contains 8 convex whorls, constricted beneath the suture and spirally granulose. The body whorl is granulose around the umbilicus. The lirae are coarsely granulose, about 5 in number. The convex base contains nine fine granulose cinguli with axially lirate interstices. The surface of the conidia is often granulose and the hilum is inconspicuous.