Salmonidas i o i 



Barbara. The spent fish abound in the rivers in spring at the 

 time of the salmon-run. The species is rarely canned, but is 

 valued for shipment in cold storage. Its bones are much more 

 firm than those of the salmon a trait unfavorable for canning 

 purposes. The flesh when not spent after spawning is excellent. 

 The steelhead does not die after spawning, as all the Pacific 

 salmon do. 



It is thought by some anglers that the young fish hatched 

 in the brooks from eggs of the steelhead remain in mountain 

 streams from six to thirty-six months, going down to the sea 

 with the high waters of spring, after which they return to spawn 

 as typical steelhead trout. I now regard this view as un- 

 founded. In my experience the rainbow and the steelhead are 

 always distinguishable: the steelhead abounds where the rain- 



FIG. 63. Steelhead Trout, Salmo rivularis Ayres. Columbia River. 



bow trout is unknown ; the scales in the steelhead are always 

 smaller (about 155) than in typical rainbow trout; finally, 

 the small size of the head in the steelhead is always distinctive. 



The Kamloops trout, described by the writer from the upper 

 Columbia, seems to be a typical steelhead as found well up the 

 rivers away from the sea. Derived from the steelhead, but 

 apparently quite distinct from it, are three very noble trout, 

 all confined so far as yet known to Lake Crescent in northwestern 

 Washington. These are the crescent trout, Salmo crescentis, 

 the Beardslee trout, Salmo beardsleei, and the long-headed trout, 

 Salmo baikacetor . The first two, discovered by Admiral L. A. 

 Beardslee, are trout of peculiar attractiveness and excellence. 

 The third is a deep-water form, never rising to the surface, 

 and caught only on set lines. Its origin is still uncertain, and 

 it may be derived from some type other than the steelhead. 



