Theliderma intermedia
CITES Appendix I (CITES)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionida
Family: Unionidae
Genus: Theliderma
Species:
T. intermedia
Binomial name
Theliderma intermedia
(Conrad, 1836)
Synonyms[3]
  • Quadrula intermedia (Conrad, 1836)
  • Unio intermedius Conrad, 1836
  • Quadrula biangulata Morrison, 1942
  • Unio tuberosus subsp. perlobatus de Gregorio, 1914

Theliderma intermedia, the Cumberland monkeyface pearly mussel or Cumberland monkeyface, is a species of freshwater mussel in the family Unionidae, the river mussels. This aquatic bivalve mollusk is native to Tennessee and Virginia in the United States. Historically widespread in the upper Tennessee River system, it populations have been reduced by habitat destruction and pollution. It now only occurs in two tributaries: the Duck and Powell Rivers.[4] It is a federally listed endangered species.[5][6]

This species is greenish yellow in color.[7] It can reach at least 35 years of age.[4] Like other mussels, it has larvae called glochidia that lodge in the gills of fish to develop into juvenile mussels. Hosts for this species include the streamline chub (Erimystax dissimilis) and blotched chub (Erimystax insignis).[8]

This mussel has been extirpated from the Elk River. There is still a population in the Powell River, and the population in the Duck River appears to be viable.[4]

References

  1. ↑ Cummings, K.; Cordeiro, J. (2012). "Theliderma intermedia". IUCN Red List of Threatened Species. 2012: e.T19041A183371195. doi:10.2305/IUCN.UK.2012-1.RLTS.T19041A183371195.en. Retrieved 15 November 2021.
  2. ↑ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. ↑ "Theliderma intermedia (Conrad, 1836)". Integrated Taxonomic Information System. Retrieved 25 December 2023.
  4. 1 2 3 U.S. Fish and Wildlife Service Southeast Region, Asheville Ecological Services Field Office (July 2011). Cumberland Monkeyface (Quadrula intermedia) 5-Year Review: Summary and Evaluation (PDF) (Report). Asheville, North Carolina: U.S. Fish and Wildlife Service. Retrieved 25 December 2023.
  5. ↑ "Cumberland monkeyface (pearlymussel) (Theliderma intermedia)". Environmental Conservation Online System. U.S. Fish & Wildlife Service. Retrieved 25 December 2023.
  6. ↑ 41 FR 24062
  7. ↑ Castronova, Frank V.; Sessine, Suzanne; Beacham, Walton, eds. (2001). "Cumberland Monkeyface". Beacham's Guide to the Endangered Species of North America. Gale Group. ISBN 0787650358. Retrieved 25 December 2023 – via encyclopedia.com.
  8. ↑ NatureServe (1 December 2023). "Quadrula intermedia". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 25 December 2023.
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