ii4 Salmonidae 



Salvelinus fontinalis. In value as food, in beauty, and in gami- 

 ness Salvelinus malma is very similar to its Eastern cousin. 



In Alaska the Dolly Varden, locally known as salmon-trout, 

 is very destructive to the eggs of the salmon, and countless 

 numbers are taken in the salmon-nets of Alaska and thrown away 

 as useless by the canners. In every coastwise stream of Alaska 



FIG. 77 The Dolly Varden Trout, Salvelinus malma (Walbaum). Lake Pend 

 d'Oreille, Idaho. (After Evermann.) 



the water fairly "boils" with these trout. They are, however, 

 not found in the Yukon. In northern Japan occurs Salvelinus 

 pluvius, the iwana, a species very similar to the Dolly Varden, 

 but not so large or so brightly colored. In the Kurile region 

 and Kamtchatka is another large charr, Salvelinus kundscha, 

 with the spots large and cream-color instead of crimson. 



Cristivomer, the Great Lake Trout. Allied to the true chairs, 

 but now placed by us in a different genus, Cristivomer, is the 



FIG. 78. Great Lake Trout, Cristivomer namaycush (Walbaum). Lake Michigan. 



Great Lake trout, otherwise known as Mackinaw trout, longe, 

 or togue (Cristivomer namaycush). Technically this fish differs 

 from the true chairs in having on its vomer a raised crest behind 



