Marstonia castor, common name the beaver pond marstonia, is a species of very small freshwater snail with a gill and an operculum, an aquatic operculate gastropod mollusc in the family Hydrobiidae. This species was endemic to a very limited area of the US state of Georgia, mostly to streams and creeks around Lake Blackshear.
| Beaverpond Marstonia | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Hydrobiidae |
| Genus: | Marstonia |
| Species: | M. castor
|
| Binomial name | |
| Marstonia castor F. G. Thompson, 1977
| |
| Synonyms | |
|
Pyrgulopsis castor (F. G. Thompson, 1977) | |
The US Fish and Wildlife Service declared this species extinct in December 2017 on the basis that it had not been seen since 2000. It was likely wiped out by groundwater withdrawal, pollution, and urbanization.[3][4] However, the IUCN Red List still lists it as Critically Endangered.
References
edit- ^ Cordeiro, J.; Perez, K. (2012). "Marstonia castor". IUCN Red List of Threatened Species. 2012: e.T18961A1929774. doi:10.2305/IUCN.UK.2012.RLTS.T18961A1929774.en. Retrieved 16 November 2021.
- ^ "Marstonia castor". NatureServe Explorer An online encyclopedia of life. 7.1. NatureServe. Retrieved 26 October 2023.
- ^ "Georgia Snail Is First Species Declared Extinct Under Trump Administration". www.biologicaldiversity.org. Retrieved 2018-01-07.
- ^ "Tiny Snail Species Unique to Georgia Declared Extinct". NBC Chicago. Retrieved 2018-01-07.
External links
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