# Fusconaia cuneolus

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Species of bivalve

Fusconaia cuneolus Conservation status Endangered (IUCN 3.1)[1] CITES Appendix I [2] Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Bivalvia Order: Unionida Family: Unionidae Genus: Fusconaia Species: F. cuneolus Binomial name Fusconaia cuneolus (Lea, 1840) Synonyms[3] Unio cuneolus Lea, 1840 Unio appressus Lea, 1871 Unio tuscumbiensis Lea, 1871 Unio flavidus Lea, 1872

***Fusconaia cuneolus***, the **fine-rayed pigtoe pearly mussel** or **fine-rayed pigtoe**, is a species of [bivalve](/source/Bivalve) in the family [Unionidae](/source/Unionidae). It is native to [Tennessee](/source/Tennessee), [Alabama](/source/Alabama), and [Virginia](/source/Virginia) in the United States, in each of which its population has declined severely. It is a federally listed [endangered species](/source/Endangered_species) of the United States.[4][5]: 24064

Like other freshwater mussels, this species reproduces by releasing its larvae, or [glochidia](/source/Glochidium), into the water where they make their way into the bodies of fish. There they develop into juvenile mussels. Fish hosts for this mussel include [fathead minnow](/source/Pimephales_promelas) (*Pimephales promelas*); [river chub](/source/Nocomis_micropogon) (*Nocomis micropogon*); [stoneroller](/source/Campostoma_anomalum) (*Campostoma anomalum*); [telescope shiner](/source/Notropis_telescopus) (*Notropis telescopus*); [Tennessee shiner](/source/Notropis_leuciodus) (*Notropis leuciodus*); [white shiner](/source/Luxilus_albeolus) (*Luxilus albeolus*); [whitetail shiner](/source/Cyprinella_galactura) (*Cyprinella galactura*); and the [mottled sculpin](/source/Cottus_bairdi) (*Cottus bairdi*).[6]

There is only one large population which is located in the [Clinch River](/source/Clinch_River).[6]

This species appears to be most closely related to *[Fusconaia cor](/source/Fusconaia_cor)*.[7]

## References

1. **[^](#cite_ref-iucn_status_16_November_2021_1-0)** Cummings, K.; Cordeiro, J. (2012). ["*Fusconaia cuneolus*"](https://www.iucnredlist.org/species/8773/3146130). *[IUCN Red List of Threatened Species](/source/IUCN_Red_List)*. **2012** e.T8773A3146130. [doi](/source/Doi_(identifier)):[10.2305/IUCN.UK.2012-1.RLTS.T8773A3146130.en](https://doi.org/10.2305%2FIUCN.UK.2012-1.RLTS.T8773A3146130.en). Retrieved 16 November 2021.

1. **[^](#cite_ref-2)** ["Appendices | CITES"](https://cites.org/eng/app/appendices.php). *cites.org*. Retrieved 2022-01-14.

1. **[^](#cite_ref-3)** ["*Fusconaia cuneolus* (Lea, 1840)"](https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=80045). [Integrated Taxonomic Information System](/source/Integrated_Taxonomic_Information_System). Retrieved 22 April 2023.

1. **[^](#cite_ref-4)** ["Finerayed pigtoe (*Fusconaia cuneolus*)"](https://ecos.fws.gov/ecp/species/3038). *Environmental Conservation Online System*. U.S. Fish & Wildlife Service. Retrieved 22 April 2023.

1. **[^](#cite_ref-5)** 41 [FR](/source/Federal_Register) [24062](https://www.govinfo.gov/link/fr/41/24062)

1. ^ [***a***](#cite_ref-tnc_6-0) [***b***](#cite_ref-tnc_6-1) NatureServe (7 April 2023). ["*Fusconaia cuneolus*"](https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.118288/Fusconaia_cuneolus). *NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer*. Arlington, Virginia: NatureServe. Retrieved 22 April 2023.

1. **[^](#cite_ref-7)** Campbell, David; Lydeard, Charles (2012). "Molecular Systematics of *Fusconaia* (Bivalvia: Unionidae: Ambleminae)". *American Malacological Bulletin*. **30** (1): 1–17. [Bibcode](/source/Bibcode_(identifier)):[2012AMalB..30....1C](https://ui.adsabs.harvard.edu/abs/2012AMalB..30....1C). [doi](/source/Doi_(identifier)):[10.4003/006.030.0101](https://doi.org/10.4003%2F006.030.0101). [S2CID](/source/S2CID_(identifier)) [84552044](https://api.semanticscholar.org/CorpusID:84552044).

Taxon identifiers Fusconaia cuneolus Wikidata: Q307791 BOLD: 80599 CoL: 6JSJ2 ECOS: 3038 EoL: 449622 GBIF: 2288182 iNaturalist: 101102 IRMNG: 10229954 ITIS: 80045 IUCN: 8773 NatureServe: 2.118288 NCBI: 301910 Open Tree of Life: 167646 Species+: 3456 WoRMS: 857889 Unio cuneolus Wikidata: Q109546352 CoL: 7DLBR GBIF: 7640877 ITIS: 986635

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