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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
The two major classes of molluscs have representatives in freshwater: the gastropods (snails) and the bivalves (freshwater mussels and clams.) It appears that the other classes within the Phylum Mollusca -the cephalopods, scaphopods, polyplacophorans, etc. - never made the transition from a fully marine environment to a freshwater environment.
Shell of Physella acuta. Snails in the family Physidae have shells that are sinistral, which means that if the shell is held with the aperture facing the observer and the spire pointing up, then the aperture is on the left-hand side. The shells of Physella species have a long and large aperture, a pointed spire, and no operculum. The shells are ...
These fresh water snails are present in aquariums and ponds, as well as in wild areas. They are also commonly referred to as tadpole snails or pouch snails. They eat algae, diatoms and detritus, including dead leaves. The populations are regulated by the abundance of food and space. They are widespread, abundant, and tolerant to pollution.
A safer alternative may be placing the plants in a quarantine tank, and adding snail poisons to that tank rather than the main show tank. Manual methods include baiting the snails with lettuce (run it under hot water first and leave overnight), cucumber slices, or food pellets. These may be left out in the open, and removed with their snails ...
Shell of marine snail Lunella torquata with the calcareous operculum in place Gastropod shell of the freshwater snail Viviparus contectus with corneous operculum in place. An operculum (Latin for 'cover, covering'; pl. opercula or operculums) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also ...
Ghonghi, fresh water snails by Tharu community of Nepal. Ghonghi is commonly consumed in the Terai region in Nepal. Ghongis are served with rice and have been a staple food of the indigenous people of Terai for ages. [31] [32] Northeast India (states of Manipur, Tripura and Nagaland). In Nagaland, snails are prepared with axone and pork meat ...
The snails are usually collected by women and children. [29] After collection, the snails are cleaned and parboiled. They are then taken out of their shells, cut, and cleaned in salted water. After rinsing with water, they are mixed with roasted rice, dried chili pepper, lime juice, and fish sauce, and then eaten. [29]