en Fusconaia subrotunda

Fusconaia subrotunda
Conservation status
	; Vulnerable (IUCN 3.1)
	; Threatened (ESA)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionida
Family:	Unionidae
Genus:	Fusconaia
Species:	F. subrotunda
Binomial name
	Fusconaia subrotunda; (Lea, 1831)
Synonyms
	List Fusconaia subrotunda subsp. subrotunda (Lea, 1831); Fusconaia subrotunda subsp. pilaris (Lea, 1840); Fusconaia subrotunda subsp. kirtlandiana (Lea, 1834); Fusconaia subrotunda subsp. lesueuriana (Lea, 1840); Unio subrotundus Lea, 1831; Unio kirtlandianus Lea, 1834; Unio politus Conrad, 1837; Unio pilaris Lea, 1840; Unio lesueurianus Lea, 1840; Unio globatus Lea, 1871; Unio bursapastoris B.H. Wright, 1896; Quadrula flexuosa Simpson, 1900; Quadrula andrewsii Marsh, 1902; Quadrula beauchampii Marsh, 1902; Quadrula kirtlandiana subsp. minor Simpson, 1900; Fusconaja subrotunda subsp. leucogona Ortmann, 1913;

Fusconaia subrotunda, the longsolid,^[2]^[3] long solid mussel or long solid naiad, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae.

This mussel, sometimes called a pigtoe, is found in river gravel. Young mussels are light brown, but darken to nearly black with age.

This species is found in Canada and the United States.

Subspecies

^ Cummings, K.; Cordeiro, J. (2012). "Fusconaia subrotunda". IUCN Red List of Threatened Species. 2012: e.T8775A3146358. doi:10.2305/IUCN.UK.2012.RLTS.T8775A3146358.en. Retrieved 16 November 2021.
^ ^a ^b "Longsolid (Fusconaia subrotunda)". Environmental Conservation Online System. U.S. Fish & Wildlife Service. Retrieved 27 November 2023.
^ ^a ^b 88 FR 14794
^ "Fusconaia subrotunda (Lea, 1831)". Integrated Taxonomic Information System. Retrieved 28 November 2023.

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