- RUDO VON COSEL (1989) Three new species of Solen (Bivalvia: Solenidae) from the Indian Ocean, with remarks on the Solenidae of Madagascar
- JEAN-MAURICE POUTIERS (1989) Note sur le genre Dacrydium Torell, 1859 dans l’Ocean Indien (Mollusques: Bivalves: Mytilidae), avec description de deux especes nouvelles.
- ANDERS WARÉN (1989) Designation of neotypes of ‘Melanella alba (Da Costa, 1778)’ and ‘Eulima glabra (Da Costa, 1778)’ (Prosobranchia)
- COLIN LITTLE, DAVID MORRITT, DENNIS R. SEAWARD & GRAY A. WILLIAMS (1989) Distribution of intertidal molluscs in lagoonal shingle (the Fleet, Dorset, U.K.)
- J. CASTILLEJO, T. RODRÍGUEZ & A. OUTEIRO (1989) Portuguese slugs. II. Deroceras nitidum and the Deroceras lombricoides group of forms. (Gastropoda: Pulmonata: Agriolimacidae)
