Nudibranchs
Publications, Australian Nudibranchs, Bibliographia Nudibranchia, Gary McDonald, Em nau! Nudibranchs, Fabio's Nudibranch Gallery, Jeff's Nudibranch Page, Mediterranean Slug Site, Nudibranch Roundup, Nudibranchs and Marine Flatworm of the World, Nudibranchs of Costa Rica: The Slugophile, Nudibranchs of Norway
Pulmonates
Aydin's Library, Freshwater Gastropods of North America Project, Freshwater Snails of Florida, Land Snails of British Columbia, Non-marine Molluscs in Shetland (UK), Norfolk Island Snails, The Apple Snail, The Giant African Land Snail, The House of Slime, Trail of the Snail
ABMAP: The Abalone Mapping Project
Documents and illustrates the current geographic distribution of abalone (Gastropoda: Vetigastropoda: Haliotidae: Haliotis) world-wide.
Class Gastropoda
A brief yet informative description on the characteristics of gastropods. Includes links to specific examples of gastropods.
Class Gastropoda
Overview of gastropod classification from the Animal Diversity Web.
Eurasia Shells
Large collection of gastropod specimen images (over 900 species) from the Philippines, rarely represented in the literature.
Freshwater Snails Of Florida
Contains an online version of The Freshwater Snails of Florida, a manual for identification, prepared by Fred G. Thompson.
Gastropoda of Montana
Overview of biology and taxonomy; species list for Montana.
Gastropods
Information on gastropods from an aquarist's viewpoint. Includes pages on specific orders of gastropods, as well as a general gastropod FAQ.
Hardy's Internet Guide to Marine Gastropods
A virtual encyclopedia of sea snails. The catalog is organized taxonomically, and contains pictures, common and scientific names, and basic taxonomic information for a large number of species.
Living Fossils of the Deep
Expedition to the deep sea of the Bahamas to explore the world of slitsnails. From the Smithsonian Institutes National Museum of Natural History.
Mollusks of the Southwest
Research on the mollusks of southwestern United States by Harold (Dave) Dyer.
NMITA Gastropod taxonomic list
The list provides a current systematic framework and summary of the taxonomic diversity of Panama Paleontology Project (PPP) mollusc collections collected, curated and identified from project inception till October 2000.