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A northern range extension for Comitas saldanhae (Barnard, 1958) (Mollusca: Gastropoda: Clavatulidae), by Frank Nolf.

Comitas saldanhae (Barnard, 1958), a species supposedly endemic to a very restricted area from Cape Point to Saldanha Bay, is also reported from the north of Namibia, SW Africa where it was found in the sixties of the previous century.

Keywords: Mollusca, CLAVATULIDAE, Comitas saldanhae, Namibia, range extension.

Rehabilitation of Clavatula smithi Knudsen, 1952 (Mollusca: Gastropoda: Clavatulidae), by Frank Nolf.

This paper demonstrates that Clavatula smithi Knudsen, 1952 and Clavatula caerulea (Weinkauff in Weinkauff & Kobelt, 1875) are two separate species living in the same geographic region off the West African coasts.

Keywords: Mollusca, Gastropoda, CLAVATULIDAE, Clavatula smithi, Clavatula caerulea, West Africa.

Anacithara biscoitoi (Mollusca: Conoidea: Turridae), a new species from West Sahara (W Africa), by Frank Nolf & Frank Swinnen.

This paper describes a third species of Anacithara from West African waters. The two other previously known species are A. angulosa (E.A. Smith, 1871) and A. maltzani (Knudsen, 1952) (Horro et al., 2010).

Keywords: Mollusca, Gastropoda, TURRIDAE, Anacithara biscoitoi, The Western Sahara, West Africa, new taxon.

The genus Semele in West Africa (Mollusca: Bivalvia: Semelidae), by Frank Nolf.

The presence of Semele modesta (Reeve, 1853) in the Gulf of Guinea is confirmed. The relationship and the differences with S. martinii (Reeve, 1853) from the West Atlantic and S. lamyi from West Africa are discussed.

Keywords: Mollusca, Bivalvia, SEMELIDAE, Semele lamyi, Semele martinii, Semele modesta, Gulf of Guinea, W Africa.

Clavatula christianae, a new turrid from West Africa (Mollusca: Gastropoda: Clavatulidae), by Frank Nolf.

A new Clavatula-species from West Africa is described. This shell was already figured and erroneously identified as Drillia rosolina Marrat, 1877 by Dautzenberg (1910), Nicklès (1950) and Bernard (1984). Drillia rosolina is a junior synonym of D. rosacea Reeve, 1845. C. christianae is compared with the related Clavatula delphinae (Nolf, 2008).

Keywords: Mollusca, Gastropoda, CLAVATULIDAE, Clavatula christianae, West Africa, new taxon.