272 FISHES. 



by the large number of anal rays (16), has been lately 

 introduced into Eastern streams. 



** Species not anadromous, living entirely in fresh water or only 



occasionally passing down to the sea. (Trout.) 

 f In flowing fresh water, retiring to deeper places in winter ; 

 red-spotted. 



3. S. fontinalis, Mitchill. BROOK TROUT. SPECKLED 

 TROUT. Mouth wide; teeth moderate; body olivaceous, 

 variegated with blackish, with numerous red spots; 

 lower fins usually orange with black and white marginal 

 bands; dorsal with black spots; colors variable; young 

 barred; D. 12; A. 12; lat. 1. 200. A well known and 

 beautiful fish, in clear brooks from the French Broad R. 

 to the Arctic regions. 



ff In deep rivers or lakes, ascending shallow streams to spawn. 

 a. Red-spotted. 



4. S. oquassa, Grd. BLUE -BACK TROUT. OQUASSA. 

 Slender, "the most graceful of all the trouts;" blue or 

 bluish above; sides and below silvery in female, orange 

 in male; sides spotted with orange in both sexes; upper 

 fins bluish, bordered with orange; lower fins fiery orange, 

 margined with white. Oquassa L. and other lakes in 

 Maine. 



aa. Black-spotted. 



5. S. sebago, Grd. SEBAGO LAKE TROUT. UNIOX 

 RIVER TROUT. Every where black-spotted; scales quite 

 large; D. 14; A. 10; V. 10; lat. 1. 115. Sebago L., 

 Union R., and other waters in Maine. (S. gloveri, Grd.) 



Iff Trout living in deep fresh water lakes, coming to the shores 

 to spawn in shallow water ; never entering running brooks 

 or passing to the sea. 



6. S. namaycush, Bloch. MACKINAW TROUT. GREAT 

 LAKE TROUT. Stout; head very large, 3^ in length; 



