TROUT FLY-FISHING IN AMERICA 



from Arkansas River the body is plumper and softer than those 

 from Twin Lakes." 



The Yellow-fin Trout 

 Salmo-clarkii-macdonaldi (Jordan and Evermann) 



This trout is a native of Twin Lakes, Colorado. It 

 is a large and handsome species, having lower fins of 

 golden yellow from which it derives its common name. 

 Its scientific name was given after the Hon. Marshall 

 McDonald, who was the U. S. Fish Commissioner at the 

 time it was recognized as a sub-species of clarkii. . 



The Yellow-fin Trout is found largely on shallow 

 gravelly bottoms, and is not often taken in deep water; 

 it spawns in the spring and rises readily to the fly. 



This trout has "body more elongate and more compressed than 

 usual among the trout. Head long, compressed, the snout mod- 

 erately pointed. 



"Scales small and regularly placed. 



"Color, silvery olive, a broad lemon yellow shade along the 

 sides, lower fins bright golden yellow in life, no red anywhere 

 except the deep red dash on each side of the throat, which is never 

 wanting in Salmo clarkii. Body posteriorly and on dorsal and 

 caudal fin profusely speckled with small pepper-like spots, smaller 

 than the nostril and smaller than in any other forms of the Salmo 

 clarkii. Occasionally these spots extend forward to the head, but 

 they are usually sparse on the anterior half of the body." 



The Waha Lake Trout of Washington 

 Salmo-clarkii-bouvieri (Bendire) 



This trout is a native of Waha Lake, Washington, 

 which is a mountain lake without outlet. It is a small 



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