Valvata macrostoma
Valvata macrostoma, also known as the large mouthed valve snail, is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Valvatidae, the valve snails.
Distribution
This species occurs in the following countries and islands:- Czech Republic - in Bohemia only
- Slovakia
- Poland
- Germany - high endangered
- Netherlands
- Great Britain
Ecology
This freshwater snail lives in marshes and very small canals that have a very rich fauna and calcium-rich water.Myzyk described life cycle of Valvata macrostoma.