536 TEX YEARS IN SWEDEN. 



become more migratory the further north, we travel. In 

 Wermland they never leave the deep fell lakes to spawn, but 

 come up for that purpose on to the shallow water at the sides 

 and in the middle of Sweden. I never heard of any being 

 taken in rivers. Up in Lapland and north Norway we read 

 of them being frequently caught with the fly in the large 

 rivers under the falls. And now another most singular fact 

 has been noticed regarding the migratory habits of this fish, 

 both by Professor Liljeborg, in Finland, in 1848, and later 

 still, by an English salmon fisher, which is, that in the tracts 

 round the North Cape they leave the rivers for the sea, like 

 the sea salmon after spawning, as they have been taken on 

 their return in the mouth of the rivers with sea lice on their 

 bodies. 



96. S. SALVELINUS, Bl. Wetterns Roding. 



It is hardly yet, I believe, decided whether this large 

 charr, which appears in Sweden to be almost peculiar to the 

 lake Wetter, and is never found in the adjacent lake 

 Wener, is a distinct species, or only a larger form of the 

 common charr. Dr, Gunther certainly considers it a distinct 

 species, and identical with the S. salvelinus of the Continent. 

 Malmgren, on the contrary, considers them one and the 

 same fish, and in remarking on the Ladoga charr, he says 

 " Of this fish we find in the deeper waters a large and a 

 small form, generally so dissimilar in colour that the fisher- 

 men consider them as distinct species, and give them differ- 

 ent names. In Ladoga they call the smaller form, which 

 live in the deepest water, ' pehuli/ and the larger form 

 ' nieria/ Pehuli lives and is taken only in the very depths 

 of the lake, in fifty to a hundred fathoms of water, while, on 

 the contrary, f nieria j wanders about in shallow water, and 

 is a greedy fish of prey. It is certain they cannot be called 

 two distinct species, and we can only suppose the pehuli to 

 be the young nieria, but we are in the dark as to what should 

 cause the difference in their colour and habits. I fancy that 

 the younger fish, which principally lives on Crustacea, holds 

 itself in the deeps where these Crustacea abound. Whilst 



