The orangethroat darter, thought possibly to be extinct in Iowa, has been collected from a limited area north of Marion in Linn County, and from Des Moines County, near Burlington. An unpublished record from Davenport has not been confirmed. Another record from Taylor's Slough at Ft. Madison, in Lee County, is considered doubtful.
Proceedings of the Iowa Academy of Science
©1964 Iowa Academy of Science, Inc.
Goellner, Karl E.
"The Orangethroat Darter (Etheostoma spectabile) in Eastern Iowa,"
Proceedings of the Iowa Academy of Science, 71(1), 247-251.
Available at: https://scholarworks.uni.edu/pias/vol71/iss1/40