Variability and distribution of Clavatula mystica (Reeve, 1843)

The taxonomic identity and distribution of Clavatula mystica (Reeve, 1843) are studied on the basis of new records. The important variability of its shell morphology partially explains the ambiguous identity of the species in the literature and the frequent confusion with other taxa. The distribution of C. mystica is shown to range from Gran Canaria to Casamance, Senegal.