Locally common under stones in shallow water.  The shell is domed with a nearly flat base and flared marginal callous.  Attains 1.5 inches 37 mm.  Central Baja California to the Galapagos and north Peru.  Formerly known as Cypraea arabicula.

A dead specimen was found at a remote location on Maui, which is possibly the first record in Hawaii, pending confirmation of a living specimen.  A handful of Eastern Pacific reef fish species have arrived via currents due to El Nino, and this is the first gastropod record.