294 Salmonide 
gals, and 75 to 95 pyloric cceca. The gill-rakers are more numer- 
ous than in any other salmon, the number being usually about 
Fic. 223.—King-salmon grilse, Oncorhynchus tschawytscha (Walbaum). 
(Photograph by Cloudsley Rutter.) 
39 (16+23). The scales are larger, there being 130 to 140 in 
the lateral line. In the spring the form is plumply rounded, 
and the color is a clear bright blue above, silvery below, and 
everywhere immaculate. Young fishes often show a few round 
black spots, which disappear when they enter the sea. Fall 
specimens in the lakes are bright crimson in color, the head clear 
olive-green, and they become in a high degree hook-nosed and 
slab-sided, and bear little resemblance to the spring run. Young 
spawning male grilse follow the changes which take place in the 
adult, although often not more than half a pound in weight. 
Payette Lake, Idaho. 
Fic. 224.—Male Red Salmon in September, Oncorhynchus nerka (Walbaum), j 
; 
4 
J 
These little fishes often appear in mountain lakes, but whether 
they are landlocked or have come up from the sea is still un- 
