Snails Gastropoda Greek for belly foot are a class of animals from the phylum Mollusca. It is the most species rich of the eight extant classes of molluscs and the only one that has also produced terrestrial species. The body size of adult snails varies from less than 0.5 mm Ammonicera rota family Omalogyridae to over 90 cm snail Syrinx aruanus . this model is rigged and well suited for animation and posing.