1 82 Bass, Pike, and Perch 



the Jefferson River. A few years ago (1898) 

 it was my good fortune to be the first to call 

 attention to this prior description. Knowing that 

 Lewis and Clark ascended the Jefferson nearly 

 to its source in the Rocky Mountains, in 1805, I 

 thought it extremely probable that those remark- 

 ably close observers had mentioned the existence 

 of this beautiful and well-marked species. Upon 

 investigation I found my surmise to be correct. 

 On page 545 of Dr. Elliott Coues's edition (1893) 

 of " The Lewis and Clark Expedition," I found 

 the following : 



" Toward evening we formed a drag of bushes, 

 and in about two hours caught 528 very good 

 fish, most of them large trout. Among them we 

 observed for the first time ten or twelve trout of 

 a white or silvery color, except on the back and 

 head, where they are of a bluish cast; in appear- 

 ance and shape they resemble exactly the 

 speckled trout, except they are not so large, 

 though the scales are much larger ; the flavor is 

 equally good." (In a foot-note Dr. Coues stated 

 that this fish remained unidentified.) 



The locality where these fish were taken was 

 near the head waters of the Jefferson River, where 

 Lewis and Clark abandoned their canoes and 



