FISHES 



41 



L. cyanopterus J. & E. Length 320 mm.; head 4; depth 3.75; color 

 silvery, bluish above; rays of dorsal fin 10 or 11; anal 11 or 12; scales 

 8-76 to 87-7: Lake Superior, in deep water. 



L. hoyi (Gill). Cisco. Length 325 mm.; head and depth 4; color 

 bluish above; sides silvery; rays of dorsal fin 10; anal 11 or 12; scales 

 7-73-7; body slender; pseudobranchiae very large: Great Lakes; locally 

 abundant. 



L.zenithicus{].kE.). Long-jaw. Length 250 mm.; head 3.8 to 4; 

 depth 4 to 4-75; color blue above, silvery on the sides; rays of dorsal fin 

 ID or 11; anal 11 or 12; scales 8-77 to 83-7: Lake Superior, in deep 

 water. 



Fig. 19. — Lencichthys lullibee {from Jordan b' Evermann's Salmonoid Fishes of the Great 



Lakes) . 



L. tullibee (Rich.). Tullibee (Fig. 19). Length 450 mm.; head 4; 

 depth 3; color bluish above; sides white with fine dots; rays of dorsal 

 and anal fins 12; scales 8 or .9-67 to 74-8; body short, very deep, com- 

 pressed; adipose fin large: basin of Lake Winnipeg; small lakes of 

 Minnesota and Wisconsin; Lakes of central New York; common. 



Family 2. Salmonidae. — Salmon and trout. Mouth large, the 

 maxillary extending to a point behind the eye; dentition strong and 

 complete, teeth occurring on the jaws, vomer, palatines and tongue; 

 scales small; flesh usually pink or orange in color: 4 genera in the 

 United States. 



Key to Genera of Salmonidae in the United States 



El Anal fin with 13 to 17 rays; Pacific salmon i. Oncorhynchus. 



ao Anal fin with from 9 to 1 2 rays, 

 bi Body not spotted with red. 

 Ci Body spotted with black. 



