Type location: Ocean Indien, sur les cotes de Tranquebar, designated by Lamarck. 1822.

DISTRIBUTION
An amphiatlantic species. Despite that, the only place where it is found in the western Atlantic is off Venezuela's coast. Eastern Atlantic (from Senegal to S. Africa, the Canary Islands and Cape Verde). In the Canary Islands it is found in all the islands but it is more common in the western ones.

DESCRIPTION
From 35 to 50 mm. Shell medium to low-spired of rounded whorls. Sculpture formed with variable axial costae that maybe narrow and closely spaced or strong and less numerous and narrow and bifid spiral cords. There is only one thread between each cord. Varices rounded and weak sometimes only the final varix around the aperture is present. Siphonal canal straight, medium to short and wide. Aperture oval with numerous plicae in columellar wall and small bifid teeth in the outer lip. Operculum corneus with a subapical nucleus. Periostracum green to brownish, very dense but not so strong as C. corrugatum. Protoconch smooth and brownish. Basic color brown to pale grey yellowish. The spiral sculpture uses to have blackish lines and varices have white and brown plolches. The aperture is white and the external dark lines are clearly visible through the aperture. Animal cream with greenish spots.

REMARKS
An uncommon species often found in sandy bottoms in the western islands. In Lanzarote it is reported from the east coast in Arrecife, Puerto del Carmen. Playa Quemada to Mala (on the NE coast of the island) from 6 to 30 m. The specimens we have found in Lanzarote lack the earlier varices and their color is brownish, usually without the dark lines. We have only found small specimens, rarely reaching 40 mm.