Scioto Madtom
Extinct 1957 CE • Ohio River
"Only 18 Scioto madtoms were ever collected, and the last confirmed sighting was in 1957 . . . U.S. Fish and Wildlife said the cause of its decline is unknown, but it was likely due to modification of its habitat from siltation, industrial discharge into waterways, and agricultural runoff."
Jarrod Clay, "Fish only found in section of Big Darby Creek declared extinct," ABC6, October 1, 2021, https://abc6onyourside.com/news/local/scioto-madtom-only-found-in-section-of-big-darby-creek-columbus-declared-extinct-us-fish-and-wildlife-endangered-species-act.
Image: M. R. Thomas, Scioto Madtoms, 43 mm SL, UMMZ 187098
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