The gastropods, gasteropods, or univalves, are the largest and most successful class of mollusks, with 60,000-75,000 extant species known, comprising the snails and slugs as well as a vast number of marine and freshwater species.
They typically have a well-defined head with two or four sensory tentacles, and a ventral foot, which gives them their name (Greek gaster, stomach, and poda, feet). The eyes that may be present at the tip of the tentacles range from simple ocelli that cannot project an image (simply distinguishing light and dark), to more complex pit and even lens eyes . The larval shell of a gastropod is called a protoconch.
More on [ Gastropoda ]
Invertebrates :: Species
Snails :: Animals
Escargot :: Specialty and Gourmet

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.
ABMAP: The Abalone Mapping Project - Documents and illustrates the current geographic distribution of abalone (Gastropoda: Vetigastropoda: Haliotidae: Haliotis) world-wide.
Meta Description: [ ABMAP: The Abalone Mapping Project. The distribution of world wide abalone, ormers, awabi, presented. ]
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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.
Meta Description: [ Welcome to EurasiaShells .NET - An Iconography of Philippine Malacofauna maintained by Emmanuel Guillot de Suduiraut of Mactan, Cebu Philippines with the collaborative efforts of several world-renowed scientifics in conchyliologie and published in the web through the technical assistance of Chan... ]
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.
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.
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