The Gray ling Family 183 



crossed the Continental Divide on horses pur- 

 chased from the Indians. At this point the gray- 

 ling is abundant to-day, as I know from personal 

 observation, and coexists with the red-throat trout 

 almost to the exclusion of all other species. 



Lewis and Clark were both remarkable for 

 clear and correct descriptions of the animals and 

 plants met with during their journey, many of 

 which were new to science ; but as they neglected 

 to give them scientific names, others have reaped 

 the honors of many of their discoveries. I pub- 

 lished my identification of the fish in question as 

 being undoubtedly the grayling, and soon after- 

 ward received a letter from Dr. Coues, congratulat- 

 ing me and indorsing my opinion, which he said 

 was certainly correct. 



The Montana grayling is found only in the 

 tributaries of the Missouri River above the Great 

 Falls. In Sheep and Tenderfoot creeks, tribu- 

 taries of Smith River, in the Little Belt Moun- 

 tains, it is fairly abundant, as it is likewise in the 

 three forks of the Missouri, — the Gallatin, Madi- 

 son, and Jefferson rivers. Its ideal home is in 

 several tributaries at the head of Red Rock Lake, 

 swift gravelly streams, and especially in the upper 

 reaches of the Madison above the upper canon, 



