Uncancylus
Uncancylus is a genus of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod molluscs in the family Planorbidae, the ram's horn snails and their allies.Anatomy
These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch" which can serve perfectly well as a gill when they are unable to reach the surface for air.Species within the genus Uncancylus include:
- Uncancylus concentricus
- Uncancylus crequi
- Uncancylus foncki
- Uncancylus patagonicus
