FISHES. 521 



Artedi divides this genus thus : 



1. Trutta, or Salmo proprii. Spots darker than the 

 colour of the body; scales tolerably small, about 10 to 12 

 in a row of a quarter the length of the head; along the vomer 

 are either a row of teeth or a raised keel, which is not, 

 however, visible till the skin is taken away. Spawn in 

 running water. 



2. Salvelini, Charr. Spots red or whitish, generally 

 paler than the body colour ; scales very small, about 18 to 20 

 in a row, a quarter the length of the head ; vomer, which 

 has teeth only on the front, is for the rest smooth without 

 teeth or keel. Spawn in still water. 



No family is so difficult to divide into species as this. No 

 great stress can be laid upon the different shape of the gill 

 covers, or position of the teeth on the vomer, for these may 

 differ even among individuals of the same genus, and the 

 colour and even the form of the fish, depends upon different 

 waters and localities. I have not space here to enter fully 

 into this subject, nor have I the ability to do so, I can only, 

 therefore, notice the different species peculiar to Scandinavia, 

 and make a few remarks on them and their probable identity 

 with other known species, from my own personal investigation, 

 and from the observation of men far better acquainted with 

 the subject than myself. 



Of the first division, the Salmon proper (Salmon and 

 Trout), we certainly have in the Scandinavian waters six 

 distinct forms, if not distinct species, viz : 



MIGEATOEY. 



1. 8. Solar } L. The Sea Salmon 

 . 2. S. Eriox, L. The Bull Trout. 



3. S. Trutta, L. The Salmon Trout. 



NON-MIGEANTS. 



4. S. solar, var. Lacustris. Wenerns Silfver Lax. 



