Fragile River Mussel (Unio fragilis). Plate 171.

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Citation

William Swainson. 1822. “Fragile River Mussel (Unio fragilis). Plate 171. .” Special Collections, USDA National Agricultural Library. Accessed July 13, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/8841.