- C. GAVAIA, M.A.E. MALAQUIAS, G. CALADO & VICTORIANO URGORRI (2004) New records of Portuguese opisthobranch molluscs
- GEERAT J. VERMEIJ & MARTIN AVERY SNYDER (2004) Pleuroploca granulilabris, a new warm-temperate Fasciolarild gastropod from Brazil
- ALBERTO MARTÍNEZ-ORTÍ & M TERESA APARICIO (2004) Taxonomical clarification of Helix semipicta Hidalgo, 1870 (Gastropoda: Pulmonata: Hygromiidae)
- B.M. POKRYSZKO & E. STWORZEWICZ (2004) A contribution to the knowledge of North KoreanGastrocopta (Gastropoda: Pulmonata: Chondrinidae)
- PETER J. COSGROVE & PAUL V. HARVEY (2004) An unusual freshwater pearl mussel Margaritifera margaritifera (L.) population in Scotland
- SADAO KOSUGE & MARCO OLIVERIO (2004) Three new coralliophiline species from south west Pacific (Neogastropoda: Muricidae: Coralliophilinae)
- REBECCA J. RUNDELL & ROBERT H. COWIE (2004) Preservation of species diversity and abundances in Pacific island land snail death assemblages
