Calpurnus verrucosus, the Umbilical Egg Shell or Warty/Little Egg Cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Ovulidae, the cowries. Distribution This species is mainly distributed in the tropical South East Africa and in the Western Pacific Ocean, in the waters along Madagascar, Mascarene Islands, Red Sea, Indonesia, Thailand and Philippines. Description The shells of this species reach of length. This cowry is pure white, smooth and ovate, the base is flat and wide. The anterior and posterior extremities have a slight purple coloration, with a yellow circle at the edge of a depressed pustule (hence the Latin name of this species, verrucosus ). The mantle of the living cowries is white and completely covered by small brown spots. Also the foot is white with dark dots and can be extended widely around the base of the shell. Habitat Living cowries can mainly be encountered in daylight under soft corals, sponges and rocks in shallow to deep waters at a depth of 20–50 m. They primarily feed on the polyps of Leather Corals (Sacrophyton and Lobophytum species, Alcyoniidae). At night they spread their mantles on the top of the soft coral and start grazing on the polyps. References Lorenz F. & Fehse D. (2009). The Living Ovulidae - A manual of the families of Allied Cowries: Ovulidae, Pediculariidae and Eocypraeidae. Conchbooks, Hackenheim, Germany Cate, C. N. 1973 - A systematic revision of the recent Cypraeid family Ovulidae - Veliger 15: 1-117 External links Biolib C. verrucosus Marine species Calpurnus species Ovulidae Gastropods described in 1758 Taxa named by Carl Linnaeus