| Arc-form pearly mussel | |
|---|---|
| Conservation status | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Unionoida |
| Family: | Unionidae |
| Genus: | Epioblasma |
| Species: | E. arcaeformis |
| Binomial name | |
| Epioblasma arcaeformis (I. Lea, 1831) |
|
| Synonyms | |
|
Dysnomia arcaeformis I. Lea, 1831 |
|
The arc-form pearly mussel or sugarspoon, scientific name Epioblasma arcaeformis, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
This species was endemic to the drainages of the Cumberland River and the Tennessee River in the United States. Its natural habitat was rivers. It became extinct due to habitat loss.