Lymnaeidae is a family of freshwater snails commonly known as pond snails. They are found in various aquatic habitats, including ponds, lakes, and marshes. These snails have a coiled shell and are typically herbivorous, feeding on algae and decaying plant matter. Members of the Lymnaeidae family are important in ecosystems as they contribute to nutrient cycling. Some species are also known to be intermediate hosts for certain parasites, such as Schistosoma, which can cause diseases in humans and animals. Their presence in water bodies can indicate environmental health.