Physa fontinalis

Physa fontinalis, common name the common bladder snail, is a species of air-breathing freshwater snail, an aquatic gastropod mollusk in the family Physidae. The shells of this species are left-handed or sinistral.
Distribution
This species is found in the Czech Republic, Germany, Poland, the Netherlands, Slovakia, Croatia and others.
References

External links
Physa fontinalis at National Center for Biotechnology Information (NCBI)