Winged mapleleaf
| Winged mapleleaf | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Unionida |
| Family: | Unionidae |
| Genus: | Quadrula |
| Species: | Q. fragosa |
| Binomial name | |
| Quadrula fragosa (Conrad, 1836) | |
| Synonyms | |
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The winged mapleleaf, also known as false mapleleaf, or hickory nut shell, and with the scientific name Quadrula fragosa, is a species of freshwater mussel. It is an aquatic bivalve mollusk in the family Unionidae, the river mussels. It is endemic to the United States.
Quadrula fragosa is only located in a few parts of Wisconsin, Minnesota, Arkansas, and Missouri — in the Midwestern United States. It is a federal critically endangered river mussel species.