Salmonidz IOI 
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- 
ne 
eee SE fj 
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 crescents, 
the Beardslee trout, Salmo beardsleez, and the long-headed trout, 
Salmo bathecetor. 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. 
