Borysthenia
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| Borysthenia Temporal range: at least from Middle Pleistocene[1]-Recent | |
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| 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[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]
Species
The genus Borysthenia contains the following species:
- † Borysthenia goldfussiana (Wüst, 1901)
- † Borysthenia intermedia Kondrashov, 2007 - from the Middle Pleistocene of Oka-Don Plain[1]
- Borysthenia menkeana (Jelski, 1863)
- Borysthenia naticina (Menke, 1845) - type species as Valvata jelskii Crosse, 1863[3]
References
- ↑ 1.0 1.1 Kondrashov P. E. (2007). "New gastropod species from the Pleistocene of the Upper Don basin". Paleontological Journal 41(5): 513-519. doi:10.1134/S0031030107050061.
- ↑ Lindholm W. A. (1913). "Miszellen zur Malakozoologie des Russischen Reiches. I-XIII." Ezhegodnik Zoologicheskago Muzeya Imperatorskoj Akademii Nauk - Annuaire due Musée Zoologique de l'Académie Impériale des Sciences de St.-Pétersbourg 18(1): 151-167. page 167.
- ↑ 3.0 3.1 3.2 "Genus summary for Borysthenia". AnimalBase, last modified 28 February 2009, accessed 22 May 2011.
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