| Ferrissia | |
|---|---|
| |
| Shell of Ferissia clessiana | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superorder: | Hygrophila |
| Family: | Planorbidae |
| Subfamily: | Ancylinae |
| Tribe: | Ancylini |
| Genus: | Ferrissia Walker, 1903[1] |
| Type species | |
| Ancylus rivularis Say, 1817 | |
| Synonyms | |
| |
Ferrissia is a genus of small, air-breathing freshwater limpets, aquatic gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.
- ^ Walker B. (1903). "Notes on eastern American Ancyli". The Nautilus 17(2/3): 13-19, 25-31.