178 FLY FISHING 



like grilse, and would have been called grilse 

 without hesitation anywhere else. They were 

 quite distinct from the sea trout, though the 

 latter overlapped the grilse in size, and our 

 largest sea trout were heavier than our smallest 

 grilse. Some of the large fish, which were 

 jumping in the voes, were apparently salmon, 

 and perhaps we might have hooked some of 

 them, if we had used some large bait instead 

 of flies, but we were always having some success 

 with flies, expecting still more, and experimenting 

 with flies of different kinds, and so the time 

 passed away. In spite of the forked tail and 

 other distinctions, I cannot say that I always find 

 it quite easy to be sure whether a fish which I 

 have landed is a large grilse or a small salmon ; 

 but the difference between sea trout and grilse 

 seems to me clear enough, for the one is un- 

 mistakably a trout, and the other is not. 



Migratory salmonid<e are generally divided into 

 three species salmo salar, salmo eriox, and salmo 

 trutta. Of salmo eriox, the bull trout, I have had 

 no experience. It has the reputation of being 

 a powerful fish, but a very bad riser, and in 

 rivers such as the Coquet of being almost useless 



