FISHES. 533 



fisherman told me that this walkea lohi never spawned. It 

 would be of the greatest interest if we could prove whether 

 this walkea lohi is permanently barren, or whether, as some 

 think, it only spawns every other year. They ground this 

 idea upon the fact that the sea salmon does not spawn every 

 year." 



94. SALMO FARIO, L. Forell. The Common Trout. D. 

 Of this fish we have two distinct forms in Scandinavia. 



1. The S.fario, Cuv.; Back Forell. 



2. S.punctatus, Guv.; Fjall Forell. 



The former is clearly identical with the common trout of 

 Britain and the Continent ; is dispersed over the whole of 

 Scandinavia ; and Nilsson mentions that on the Dovre Fell, 

 in Norway, he has seen them 18 in. long, and they occa- 

 sionally reach the weight of 12 Ib. and upwards. In the 

 south of Sweden, however, they rarely exceed 6 to 8 in. in 

 length. 



8. punctatus may always be distinguished by the little 

 dark spots with which the body is thickly strewed all over. 

 Is confined to the fell lakes, and can live at a greater ele- 

 vation than any other European fish, for we never find the 

 charr in those lakes that lie above the willow region, whereas 

 the fjall trout thrives in waters which are surrounded by 

 perpetual snows. 



Malmgren makes the S.fario, or common trout, nothing 

 more than a variety (Yar. C.) of the 8. trutta, L., or salmon 

 trout. I do not fancy many naturalists will agree to this, 

 although, doubtless, there is much truth in what he says 

 respecting this fish : ' ' Large individuals of this variety can 

 be known by no certain distinguishing characters from in- 

 dividuals of the same size of the foregoing variety (8. 

 ferox) ." 



It can be no other than a large example of fario which 

 Nilsson has described as 8. ferox, Jard., in his " Scandina- 

 vian Fishes," p. 415, and which was sent down from the 

 Tornea river ; and even Nordmann has fancied that a full- 

 grown 8. fario, caught in the Kajana river, was 8. ferox. 



