Borysthenia
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| Borysthenia Temporal range: | |
|---|---|
 | |
| Subfossil shells of Borysthenia naticina | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Family: | Valvatidae |
| Genus: | Borysthenia Lindholm, 1913[2] |
Borysthenia is a genus of small freshwater snails with an operculum, aquatic gastropod mollusks in the family Valvatidae, the valve snails.
The aperture of Borysthenia is not circular.[3] Animals are ovoviviparous.[3]