Common name: Snake River Finespotted Cutthroat Trout
Synonyms and Other Names: Oncorhynchus clarkii carmichaeli, Jackson Hole cutthroat trout.
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Identification: Oncorhynchus clarki behnkei can be distinguished from Yellowstone (O. c. bouvieri) and other varieties of cutthroat trout by the profuse distribution of small spots on body and dorsal, adipose, and caudal fins (Behnke 2002; Page and Burr 2011).
Native Range: Upper Snake River (and tributary streams downstream of and including Gros Ventre River) between Palisades Reservoir and Jackson Lake; Wyoming and Idaho (Behnke 2002; Page and Burr 2011).
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Oncorhynchus clarkii behnkei are found here.
Table last updated 6/26/2022
† Populations may not be currently present.
Means of Introduction: Stocked for sport
References: (click for full references)
Behnke, R.J. 2002. Trout and salmon of North America. The Free Press, New York, NY.
Page, L.M., and B.M. Burr. 2011. Field guide to freshwater fishes of North America north of Mexico. Peterson Field Guides series. Houghton Mifflin Harcourt, Boston, MA.
Rasmussen, J.L. 1998. Aquatic nuisance species of the Mississippi River basin. 60th Midwest Fish and Wildlife Conference, Aquatic Nuisance Species Symposium, Dec. 7, 1998, Cincinnati, OH.
Matt Neilson, and Pam Fuller
Revision Date: 5/30/2012
Peer Review Date: 5/30/2012
Matt Neilson, and Pam Fuller, 2022, Oncorhynchus clarkii behnkei Montgomery, 1995: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=892, Revision Date: 5/30/2012, Peer Review Date: 5/30/2012, Access Date: 6/29/2022
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.