North America: northeastern Mexico and north to the Great Lakes.
- IUCN, International Union for Conservation of Nature and Natural Resources 1990 1990 IUCN red list of threatened animals. IUCN, Gland, Switzerland and Cambridge, U.K. 288 p. (Ref. 3881) http://www.fishbase.org/references/FBRefSummary.php?id=3881&speccode=2033
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