Borysthenia
|
Borysthenia Temporal range: at least from -Recent |
|
|---|---|
 |
|
| Subfossil shells of Borysthenia naticina | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): |
clade Heterobranchia informal group Lower Heterobranchia |
| Superfamily: | Valvatoidea |
| Family: | Valvatidae |
| Genus: |
Borysthenia Lindholm, 1913 |
informal group Lower Heterobranchia
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. Animals are ovoviviparous.
The genus Borysthenia contains the following species:
...
Wikipedia