FOREST, LAKE, AND RIVER 



the laws protecting them, the trout streams are 

 plentiful and the fish increasing in numbers. 



The native trouts of New England and Canada 

 consist of ten species, viz : 



The Brook or speckled troMtj Sahelinus fontinalis. 

 The Dublin Pond trout, Sahelinus fontinalis agassiziiy 

 The Long-finned charr, Sahelinus alpinus alipes^ 

 The Greenland charr, Sahelinus alpinus stagnalis. 

 The Arctic charr, Sahelinus alpinus arcturus^ 

 The Sunapee trout, Sahelinus alpinus aureolus^ 

 The Blueback or Oquassa trout, Sahelinus oquassa. 

 The Nares trout, Sahelinus oquassa naresiy 

 The Lac de Marbre trout, Sahelinus oquassa marstoni. 

 The Lake trout or togue, Cristivomer namaycush. 



The above named fish are all " charrs," distin- 

 guished from the salmon and salmon trouts by the 

 location of the teeth on the vomer, a bone on the 

 roof of the mouth. This peculiarity will be here- 

 after described in detail. 



In addition to these ten species of native trout, 

 there has been introduced into New England 

 waters five foreign species and a few transplanted 

 forms from the Pacific slope. The foreign va- 

 rieties are : 



The German or Brown trout, Salmo fario^ 

 The Loch Leven trout, Salmo trutta levenensis. 

 The Swiss Lake trout, Salmo lemanus^ 



96 



