346 AMERICAN GAME FISHES. 



Space; dorsal when laid back not reaching adipose fin. t. 



TRICOLOR. 



Aa. Gill-rakers i8; pyloric coeca i8; 3-10 head; mandible 

 much shorter than anal base; eye much less than interorbital 

 space; dorsal when laid back reaching end of adipose fin. x. 



SIGNIFER. 



To the anglers and ichthyologists of the United States 

 the Grayling is comparatively a new fish. The Arctic spe- 

 cies was described in 18 19, by Sir John Richardson, of the 

 Franklin expedition, and called TJiyinallns sigiiifer (stand- 

 ard-bearer); TJiyviallns having reference to the odor resem- 

 bling that of thyme or cucumbers, which causes it in England 

 to be known as "the flower of fishes"; but which appears to 

 be peculiar to the Grayling of Europe. 



The Esquimaux of the Mackenzie River give this fish the 

 name of Hewluk-powak, or tJic fish until tJie wing-like fin. 

 The Grayling is of the family Salmonidse, and is distinguished 

 from the Trout by its smaller mouth and teeth, and by the 

 greater size of the dorsal fin. The scales are also much 

 larger. 



This fish is more elegantly formed than the Trout; it is of 

 a beautiful silvery gray, the fins olive brown, the pectorals 

 shading into blue near the ends. Its magnificent dorsal is 

 dotted with purple or reddish spots, surrounded in life by 

 greenish tints, and is about one-fourth the length of the fish. 

 It rises with a gracefully curving outline to a height of two 

 or more inches in a Grayling weighing a pound, and its 

 apparent use is to enable the fish to rise and descend rapidly. 



In Michigan waters the weight of the fish seldom exceeds 

 a pound and a half, and they are not often taken above fifteen 

 inches in length. 



The Jordan, the Boyne and the Boardman were once noted 

 as Grayling streams, but, as far as can be learned, the Trout 

 were then new-comers, having as is believed migrated within 

 forty years from the streams of the upper peninsula, where 



