GENERAL DESCRIPTION 



able to discover and classify not only the trouts, but 

 all the salt and fresh water genera of the continent. 



A recent official summary of American trout, pre- 

 pared for me by courtesy of William C. Harris, author 

 of " North American Fishes," gives thirty-eight species, 

 besides three introduced from Europe, and not includ- 

 ing the sea trout (s. Canadensis and immaculatus), which 

 was recognized as a distinct species by Smith, Storer, 

 Scott, Hallock, and other early ichthyologists, in con- 

 travention of the present standard of differentiation, 

 which is based on anatomical structure entirely : 



Summary of American Trouts. 



Salmon Grouts. 



Cutthroat or Rocky Mountain Trout — Salmo Clarkii. 



Yellowstone Trout — Sahno Clarkii /£'cc;/j/— sub-species 

 represented in the tributaries of the Columbia 

 River by Salmo Clarkii gibsii — sub-species. 



Lake Tahoe Trout — Salmo Clarkii Hensha-usi — sub- 

 species. 



Utah Lake Trout — Salmo Clarkii virginalis — sub- 

 species. 



Rio Grande Trout — Salmo Clarkii spilvrus — sub-species. 



Colorado River Trout — Salmo Clarkii plenriticus — sub- 

 species, 



Waha Lake Trout — Salmo Clarkii howceri — sub-species. 



Green-back Trout — Salmo Clarkii stomias — sub-species. 



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