| Planorbella | |
|---|---|
| |
| Planorbella trivolvis | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superorder: | Hygrophila |
| Family: | Planorbidae |
| Subfamily: | Planorbinae |
| Tribe: | Helisomatini |
| Genus: | Planorbella Haldeman, 1843[1] |
Planorbella is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells.
- ^ Haldeman (1843). Mon. Fresh Water univ. Moll. U.S. (6): 14.