The Scioto madtom (''Noturus trautmani'') was a species of

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of ...

in the family

Ictaluridae The Ictaluridae, sometimes called ictalurids, are a family of catfish native to North America, where they are an important food source and sometimes fished for sport. The family includes about 51 species, some commonly known as bullheads, madt ...

. It is listed as extinct by the

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of nat ...

, 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 Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...

in the United States. Only one population was ever known; it was located in

Big Darby Creek Big Darby Creek is a scenic river located in northwestern central Ohio, and an important tributary to the Lower Scioto River. The river's major tributary is the Little Darby Creek. The river runs from its source near the Champaign-Union coun ...

, a tributary of the

Scioto River The Scioto River ( ) is a river in central and southern Ohio more than in length. It rises in Hardin County just north of Roundhead, Ohio, flows through Columbus, Ohio, where it collects its largest tributary, the Olentangy River, and meets t ...

. Eighteen specimens were collected, all at one

riffle A riffle is a shallow landform in a flowing channel. Colloquially, it is a shallow place in a river where water flows quickly past rocks. However, in geology a riffle has specific characteristics. Topographic, sedimentary and hydraulic indica ...

in this creek, an area called Trautman's Riffle. It has not been seen since 1957.

References

Further reading