Scioto madtom

The Scioto madtom (Noturus trautmani) was a species of fish in the family Ictaluridae. It is listed as extinct by the International Union for Conservation of Nature, which notes that it has likely been entirely or functionally extinct since 1957 given the lack of records since that year.

This fish was endemic to Ohio in the United States. Only one population was ever known; it was located in Big Darby Creek, a tributary of the Scioto River. Eighteen specimens were collected, all at one riffle in this creek, an area called Trautman's Riffle. It has not been seen since 1957.

It was proposed for removal from the list of endangered species by the U.S. Fish & Wildlife Service on September 30, 2021. It was removed on October 16, 2023, in accordance with the Endangered Species Act due to it being declared extinct.

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• Biegler, Craig (26 January 2022). "Requiem For a Fish – The Secrets of the Scioto Madtom". The Metro Parks Blog. Columbus and Franklin County Metro Parks.
• Kibbey, Marc (1 February 2016). "A State Treasure: Gone But Not Forgotten". OSU Bio Museum. The Ohio State University.
• Orner, Ben (3 October 2021). "This fish only found near Columbus was just declared extinct". NBC4 WCMH-TV.
• Platt, John R. (2 December 2013). "Tiny Ohio Catfish Species, Last Seen in 1957, Declared Extinct". Scientific American Blog Network.
• Sabin, Dyani (27 February 2019). "The Endangered Species List Is Full of Ghosts". Medium. Popular Science.
• Trautman, Milton B (1981). "Scioto madtom". The Fishes of Ohio. Ohio State University Press. p. 503. doi:10.2307/j.ctv18bv9k3. ISBN 978-0-8142-0213-5. JSTOR j.ctv18bv9k3. S2CID 228965193.