- D.S. BROWN & B. VERDCOURT (1998) A new genus and species of freshwater pulmonate (Planorbidae) from Kenya
- I.J. KILLEEN & J.M. LIGHT (1998) Observations on Onoba semicostata and O. aculeus around British and northern French coasts
- PG. OLIVER, A.M. HOLMES & C. METTAM (1998) Mytilopsis leucophaeta, (Conrad, 1831) [Bivalvia: Dreissenoidea]. A species new to the British fauna.
- M.B. SEDDON & M.-T. APARICIO (1998) Problematic taxa from Morocco – the status of 'Helix argonautula' Webb & Berthelot, 1833, 'Helix renati' Dautzenberg, 1894 and Xeroleuca antoinei Pallary, 1936.¹
- P. TATTERSFIELD (1998) Three new species and a new subgenus of Gulella (Gastropoda: Streptaxidae) from Tanzania
- W. WELLENS M.D. (1998) Redescription of Coriocella nigra de Blainville 1825 and Chelyonotus tonganus Quoy and Gaimard 1832 (Gastropoda: Prosobranchia: Lamellariidae).
