BIOLOGICAL 131 



are heavier on the upper part of sides and on the tail 

 and dorsal fins. 



This trout spawns in the spring and in some of the 

 sub-species reaches a weight of nine pounds in fresh 

 water and up to twenty-five pounds when sea run, 

 at which time the market fishermen call them " salmon 

 trout." 



The steel head was once considered the same fish 



Mountain Trout 



as the cut throat and many western anglers still main- 

 tain that the rainbow and the steel-head are identical 

 except for local variations, showing that all of these 

 western fishes greatly resemble each other in a general 

 way at least. 



The steel head trout is looked upon as a good game 

 fish in the west, rising well to flies in the streams and 

 putting up a good fight, mostly in the air like the rain- 

 bow. At the mouths of rivers very large specimens are 

 taken with live bait. 



The Dolly Varden or bull trout (Salvelinus malma) 

 is the only charr native to the west. It is a stockier 



