Biomphalaria kuhniana

Biomphalaria kuhniana is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.

Shell description
All species within the family Planorbidae have sinistral shells.

Distribution
Dominica.

Phylogeny
A cladogram showing the phylogenic relationships of species within the genus Biomphalaria: