Viviparacea

The Viviparacea are a superfamily of freshwater snails, commonly known as pond snails or river snails. These snails are characterized by their globular shells, typically greenish in color and banded with brown, ranging from 2.5 to 5 cm in size. A key feature of this group is their mode of reproduction: they are viviparous, meaning they give birth to live young that are already well-developed with shells. This contrasts with oviparous animals, which lay eggs. The Viviparidae family, to which the genus Viviparus belongs, is widely distributed in the Northern Hemisphere and tropical regions. Many species are frequently found in freshwater aquariums.123