Columbellidae (Gastropoda, Neogastropoda) of the gulf of Guinea with the description of eight new species

The species of the family Columbellidae found in West Africa are studied. Five genera are represented: Columbella (1 species), Anachis (1), Mitrella (11), Cotonopsis (1) and Strombina (1). Of the 15 species mentioned, 8 are described as new. The genus Strombina is employed by first time for a West African species.