The Land Snail On Rock Royalty-Free Stock Image

Photo of an land Snail on rock. The gastropods snails & slugs are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell the snails. Some lack a shell completely, or have reduced internal shells the slugs & sea slugs & pteropods. Most members of the Gastropoda are marine. Most marine snails are herbivores algae grazers or predators/carnivores.