Lymnaea is a genus of small to large-sized air-breathing freshwater snails, aquatic pulmonate gastropod mollusks in the subfamily Lymnaeinae ( of the family Lymnaeidae, the pond snails.

[2] Some species are used in aquaculture under the name Melantho snails.

[3] Numerous Lymnaea species serve as intermediate hosts for trematodes.

[4][5][6] Lymnaea is the type genus of the family Lymnaeidae.

[7] Species within the genus Lymnaea include: