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Freshwater snails are gastropod mollusks that live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers. The great majority of freshwater gastropods have a shell, with very few
Living abalone in tank showing epipodium and tentacles, anterior end to the right. Abalone (/ ˈ æ b ə l oʊ n i / ⓘ or / ˌ æ b ə ˈ l oʊ n i /; via Spanish abulón, from Rumsen aulón) is a common name for any small to very large marine gastropod mollusc in the family Haliotidae, which once contained six genera but now contains only one genus, Haliotis. [1]
Melo melo, common name the Indian volute or bailer shell (also spelled baler), [3] is a very large edible sea snail, a marine gastropod mollusc in the family Volutidae, the volutes. [ 1 ] Distribution
The word gastropod comes from Greek γαστήρ (gastḗr 'stomach') and πούς (poús 'foot'), a reference to the fact that the animal's "foot" is positioned below its guts. [7] The earlier name "univalve" means one valve (or shell), in contrast to bivalves, such as clams, which have two valves or shells.
Determining whether some gastropods should be called sea snails is not always easy. Some species that live in brackish water (such as certain neritids) can be listed as either freshwater snails or marine snails, and some species that live at or just above the high tide level (for example, species in the genus Truncatella) are sometimes considered to be sea snails and sometimes listed as land ...
There have been hybridizations of snail species; although these do not occur commonly in the wild, in captivity they can be coaxed into doing so. Parthenogenesis has been reported only in one species of slug, [21] but many species can self-fertilise. [22] C. obtusus is a prominent endemic snail species of the Eastern Alps.
A snail is a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name snail is also used for most of the members of the molluscan class Gastropoda that have a coiled shell that is large enough for the animal to retract
Cassis madagascariensis, common name the queen helmet, is a marine gastropod mollusc in the family Cassidae, the helmet shells and bonnet shells.It is known for being the largest species of its family in the Atlantic Ocean. This organism has 4 direct children, which include Cassis madagascariensis f. spinella Clench, Cassis madagascariensis ...