522 TEN YEARS IN SWEDEN. 



5. S. microps, Hard.,, S.ferox, Jard. Great Lake Trout. 



6. 8. fario, L. Common Trout. 



And of the second division, or charr, we have two clearly 

 distinct forms if not species. 



1. S. alpinus,It. The Charr. Lapplands Roding, Sw, 



2. 8.salvelinu8,'Bl. Wetterns Boding, Sw. 



89. SALMO SALAR, L. Blank Lax. The Salmon. D. F. 



Whatever difficulty there may be in identifying any 

 other members of the family, or distinguishing one from 

 the other, there is no doubt that the sea salmon of Scan- 

 dinavia is precisely the same as the salmon of Great Britain 

 and North America, and its habits in these waters are the 

 same as in other countries. They are common all round 

 these coasts, and ascend the rivers which run into the 

 Baltic, Bothnia, Cattegat, North, and Polar Seas, in the 

 end of the spring, to spawn. But in many streams they 

 cannot come up far, on account of the steep water falls with 

 which these northern rivers abound, and as salmon ladders 

 or other devices to assist the fish in their progress to and 

 from the sea are not in use here, the falls generally prove 

 insurmountable obstacles. On this account we have no 

 fresh run sea salmon in the Wener, for they could not 

 come up the falls of Trolhattan, which lie about six English 

 miles down the Gotha, south of this lake. The sea salmon, 

 as well as the bull trout and salmon trout, however, come 

 up to the bottom of the falls to spawn every spring, and the 

 different seasons of their appearance at the little village of 

 Lilla Edet, about twenty miles below the falls, as stated by Nils- 

 son, may be relied upon as correct. The sea salmon generally 

 begin their spring migrations here as soon as the rivers 

 are free from ice, and these migrations appear to go on 

 periodically during nearly the whole summer, and the fish 

 are called according to the season when they arrive. Thus 

 at Lilla Edet, the firsfc that come up are : 



1. Mort Lax. These are smaller than the general 

 salmon and come up the river in the end of April, or early 

 in May, when the " raort," or roach, spawn. 



