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Edible molluscs are harvested from saltwater, freshwater, and the land, and include numerous members of the classes Gastropoda (snails), Bivalvia (clams, scallops, oysters etc.), Cephalopoda (octopus and squid), and Polyplacophora (chitons). Many species of molluscs are eaten worldwide, either cooked or raw.
The great majority of shelled gastropods or snails have a shell in one part, hence the older name "univalve". The gastropod operculum , when present, even when it is composed mostly of calcium carbonate , is not considered to be a valve.
Snails are eaten by humans in many areas such as Africa, Southeast Asia and Mediterranean Europe, while in other cultures, snails are seen as a taboo food. In English, edible land snails are commonly called escargot, from the French word for 'snail'. [1] Snails as a food date back to ancient times, with numerous cultures worldwide having ...
Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 [3] [4] living snail and slug species.
The non-marine molluscs of India are a part of the molluscan fauna of India. There are 5070 species of marine and non-marine molluscs living in the wild in India. [1] There are 3371 species of marine molluscs in India. [2] There are 1671 species of non-marine molluscs living in the wild in India. This includes 1488 terrestrial species in 140 ...
The snail's oesophageal gland houses symbiotic gammaproteobacteria from which the snail appears to obtain its nourishment. This species is considered to be one of the most peculiar deep-sea hydrothermal-vent gastropods, and it is the only known extant animal that incorporates iron sulfide into its skeleton (into both its sclerites and into its ...
Apple snails use the siphon in a way that is reminiscent of a human swimmer using a snorkel, except that the apple snail's siphon can be retracted completely, or extended to various lengths as needed. [6] For these freshwater snails, the siphon is an anti-predator adaptation.
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