- RICARDO SILVA ABSALÃO & FRANKLIN NOEL SANTOS (2004) Recent deep-sea species ofBenthonellania Lozouet, 1990 (Gastropoda: Rissooidea) from the south-western Atlantic, with descriptions of species utilizing a shell morphometric-multivariate approach
- ROY ANDERSON (2004) Arion occultus n. sp., a new slug of subgenus kobeltia Seibert (Pulmonata: Arionidae) from Ireland
- FRANCK BOYER (2004) Description of a new Cystiscus (Gastropoda: Cystiscidae) from the Mascarene Islands.
- ROBERT A BRIERS (2004) The relationship between abundance and prevalence of trematode parasites infecting Lymnaea stagnalis L.
- BERNHARD HAUSDORF & SAMIRA GUEVARA MUÑOZ (2004) Adelopoma peruvianum new species from northern Peru (Gastropoda: Diplommatinidae)
- MICHAL HORSÁK & KATERINA NEUMANOVA (2004) Distribution of Pisidium globulare Clessin, 1873 (Mollusca: Bivalvia) in the Czech Republic and Slovakia with notes to its ecology and morphological characters
- KOSTAS A. TRIANTIS, MYOSIS MYLONAS & KATERINA VARDINOYANNIS (2004) Contribution to the knowledge of the terrestrial malacofauna of the island group of Dionysades (Crete, Greece)
- KOSTAS A. TRIANTIS, BEATA M.POKRYSZKO, KATERINA VARDINOYANNIS & MOYSIS MYLONAS. (2004) A new species of Truncatellina (Gastropoda: Vertiginidae) from Mount Ossa (=Kissavos) (Greece)
- MIN WU (2004) Two new Angiomphalia species from China (Pulmonata: Helicoidea) extending the eastern fringe of the Hygromiidae
- TED VON PROSCHWITZ (2004) On the distribution and ecology of Vertigo substriata (Jeffreys), vertigo modesta arctica (Wallenberg), vertigo lilljeborgi (westerlund) and vertigo alpestris Alder in France and on the Iberian Peninsula
- A J MILLAR & S WAITE (2004) Patterns of shell damage among snails from a coppice woodland in Sussex, England
- IAN J. KILLEEN & BEN MCFARLAND (2004) The distribution and ecology of Gyraulus acronicus(Férussac, 1807) (Gastropoda: Planorbidae) in England
