The Humboldt cutthroat trout'', Oncorhynchus henshawi humboldtensis'', (formerly, ''Oncorhynchus clarkii humboldtensis)'' is a subspecies of

Lahontan cutthroat trout Lahontan cutthroat trout'','' ''Oncorhynchus henshawi'',Markle, D. (2018). An interim classification of the cutthroat trout complex, Oncorhynchus clarkii Sensu Lato, with comments on nomenclature. In Trotter P., Bisson P., Schultz L., & Roper B. ...

, a North American fish in the family

Salmonidae Salmonidae (, ) is a family (biology), family of ray-finned fish, the only extant member of the suborder Salmonoidei, consisting of 11 extant genera and over 200 species collectively known as "salmonids" or "salmonoids". The family includes salmo ...

. It is one of the several subspecies of cutthroat trout. It was formally scientifically named in 2008 by Trotter and Behnke, who stated its distribution is in the basins of the upper

Humboldt River The Humboldt River is the longest river in the northern and central part of Nevada. It extends in a general east-to-west direction from its headwaters in northern Nevada's Jarbidge Mountains, Jarbidge, Independence Mountains, Independence, and ...

of northern

Nevada Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...

, the Upper Quinn River (Nevada and Oregon), as well as the Whitehorse (Coyote) basin (Oregon). The Nevada and Oregon Fish and Wildlife authorities still consider these populations belonging to the subspecies ''O. c. henshawi'' (the

).Species Fact Sheet: Lahontan cutthroat trout
, U.S. Fish & Wildlife Service, Oregon Fish and Wildlife Office
U.S. Fish & Wildlife Service, Nevada Fish and Wildlife Office In 2023 the American Fisheries Society ''Common and Scientific Names of Fishes from the United States, Canada, and Mexico, 8^th edition'' reclassified all Cutthroat Trout from one species (formerly, O''ncorhynchus'' clarkii) into four distinct species:

Coastal A coast (coastline, shoreline, seashore) is the land next to the sea or the line that forms the boundary between the land and the ocean or a lake. Coasts are influenced by the topography of the surrounding landscape and by aquatic erosion, su ...

, Lahontan, Westslope, and Rocky Mountain Cutthroat Trout. The Humboldt cutthroat trout retained their

trinomial In elementary algebra, a trinomial is a polynomial consisting of three terms or monomials. Examples of trinomial expressions # 3x + 5y + 8z with x, y, z variables # 3t + 9s^2 + 3y^3 with t, s, y variables # 3ts + 9t + 5s with t, s variables # a ...

designation as a subspecies (humboldtensis), but as a subspecies of the

Lahontan Cutthroat Trout Lahontan cutthroat trout'','' ''Oncorhynchus henshawi'',Markle, D. (2018). An interim classification of the cutthroat trout complex, Oncorhynchus clarkii Sensu Lato, with comments on nomenclature. In Trotter P., Bisson P., Schultz L., & Roper B. ...

(''Oncorhynchus henshawi'')''.''

References

Further reading