Case of Wholesale Harlequin cowires, "Mautitia Histrio" is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries. These harlequin cowrie shells wholesale measure between 2 and 3 inches.  The basic color of the harlequin cowrie shell is pale brown, with many grey round spots on the dorsum surface and several dark brown marginal spots on the edges. The base is mainly white or pale brown, with a wide aperture and well-developed darker teeth, longer and stronger on the outer side.