Epioblasma flexuosa

Epioblasma flexuosa
Conservation status
	; Extinct (IUCN 2.3)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionida
Family:	Unionidae
Genus:	Epioblasma
Species:	E. flexuosa
Binomial name
	Epioblasma flexuosa; (Rafinesque, 1820)
Synonyms
	Dysnomia flexuosa Rafinesque, 1820

Epioblasma flexuosa, the arcuate pearly mussel or leafshell, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species was endemic to the United States, where it was found in the major drainages of the Ohio River, including the Cumberland, Tennessee, and Wabash Rivers. Its natural habitat was flowing water.

Like most other members of this sensitive genus, it became extinct early after industrialization due to habitat loss and pollution. The last living individual was seen in the year 1900.[2]

It appears to be most closely related to Epioblasma lewisii, which is also now extinct.[3]

References

Bogan, A.E. 2000. Epioblasma flexuosa. 2006 IUCN Red List of Threatened Species. Downloaded on 7 August 2007.
NatureServe Explorer
Johnson, R.I. (1978). "Systematics and zoogeography of Plagiola (= Dysnomia = Epioblasma), an almost extinct genus of freshwater mussels (Bivalvia: Unionidae) from Middle North America". Bulletin of the Museum of Comparative Zoology. 148: 239–321.

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[iucn-1] Bogan, A.E. 2000. Epioblasma flexuosa. 2006 IUCN Red List of Threatened Species. Downloaded on 7 August 2007.

[2] NatureServe Explorer

[3] Johnson, R.I. (1978). "Systematics and zoogeography of Plagiola (= Dysnomia = Epioblasma), an almost extinct genus of freshwater mussels (Bivalvia: Unionidae) from Middle North America". Bulletin of the Museum of Comparative Zoology. 148: 239–321.