Viviparus viviparus

Substrate scraper, feeds on the cover of Periphyton, which develops on aquatic plants, of which it also grazes the foliage. The opening is closed by an operculum where one perfectly distinguishes concentric circles.

The Viviparus Viviparus, also known as a common viviparous snail, is a species of snail which is commonly found in Europe and North America. It is characterized by its spiral shell, generally brown or gray color, which measures approximately 2.5 centimeters in diameter. Viviparus viviparus is a viviparous snail, that is to say that it gives birth to small living, rather than laying eggs like most snails. Young snails are generally lighter than adults, and they usually take about a year to reach their adult size.

The female carries her eggs to the final phase of their development.