Shiny pigtoe
| Shiny pigtoe | |
|---|---|
| |
| Museum specimen | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Unionida |
| Family: | Unionidae |
| Genus: | Fusconaia |
| Species: | F. cor
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| Binomial name | |
| Fusconaia cor (Conrad, 1834)
| |
| Synonyms[4] | |
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The shiny pigtoe (Fusconaia cor) is a species of bivalve in the family Unionidae. It is endemic to the United States.
The shiny pigtoe has been eliminated from most of its historic range.[1] Populations currently exist in the North Fork of the Holston River, Clinch, Powell and Paint Rock river systems in Alabama, Tennessee, and Virginia.[5] Threats to the species include habitat alteration and fragmentation, hydroelectric dams, wastewater discharge, water withdrawal, non-native species, and runoff of silt and other pollutants.[6]
It is a medium-sized mussel that is about 2.5 inches (64 mm) in size. It has a smooth and shiny oval-shaped shell with distinguishing dark green to blackish rays on a yellow to brown background. Younger specimens have a bolder ray color patterning. The inner nacre is white.[6]
The shiny pigtoe is tachytichtic, spawning between late May and early June.[5] Known glochidial hosts include the common (Luxilus cornutus), warpaint (Luxilus coccogenis), telescope (Notropis telescopus) and whitetail (Cyprinella galactura) shiners.[5]
This species appears to be most closely related to Fusconaia cuneolus.[7]
References
[edit]- ^ a b Cummings, K.; Cordeiro, J. (2012). "Fusconaia cor". IUCN Red List of Threatened Species. 2012: e.T8778A3146798. doi:10.2305/IUCN.UK.2012-1.RLTS.T8778A3146798.en. Retrieved 16 November 2021.
- ^ "Shiny pigtoe (Fusconaia cor)". Environmental Conservation Online System. U.S. Fish & Wildlife Service. Retrieved 22 April 2023.
- ^ 41 FR 24062
- ^ "Fusconaia cor (Conrad, 1834)". Integrated Taxonomic Information System. Retrieved 22 April 2023.
- ^ a b c NatureServe (7 April 2023). "Fusconaia cor". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 22 April 2023.
- ^ a b US Fish and Wildlife Service. "Species profile for Shiny pigtoe (Fusconaia cor)".
- ^ Campbell, David; Lydeard, Charles (2012). "Molecular Systematics of Fusconaia (Bivalvia: Unionidae: Ambleminae)". American Malacological Bulletin. 30 (1): 1–17. doi:10.4003/006.030.0101. S2CID 84552044.
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