34 THE SPORTING FISH 



Yarrell, however, speaking of the Bull-Trout 

 generally, appears to differ from this view, as it is 

 evident that if the fish do not run up the rivers 

 till November, they spawn later than the salmon ; 

 whereas Yarrell on the contrary asserts that " they 

 ascend rivers for the purpose of spawning in the 

 same manner as the Salmon, but earlier in the 

 season ; and the fry are believed to go down to 

 the sea sooner than the fry of the Salmon." 

 This discrepancy is probably to be explained 

 by the difference of habits in fish of different 

 waters. 



Some of the most obvious characteristic diver- 

 gencies between the Bull-Trout, the true Salmon 

 and the Sea-Trout have already been given in the 

 preceding chapter. 



A glance at the illustration will at once show 

 the remarkable difference in form between the adult 

 Bull-Trout, and eitherthe full-grown Salmon, or Sea- 

 Trout ; the Bull-Trout being obviously shorter, 

 thicker, and generally more muscular in fact, as 

 its name would appear to express more bull-like 

 in appearance. The Bull-Trout, moreover, is 

 thickly spotted with brown over the back and 

 sides, both above and below the lateral line, and 

 even to the tip of the dorsal fin, which in the salmon 

 is seldom or ever marked with more than a few 

 " sploches," and those close to the base of the fin. 

 The dorsal fin of the Sea-Trout is generally spotted 

 like that of the Bull-Trout, though not quite so 



