FISHES 



41 



L. />ro^;w///z/.v (H. M. Smith). Long-jaw. Length 375 mm.; head 

 4.3; depth 3.5 to 4; color dusky above; sides silvery; rays of dorsal fin 9 

 or 10; anal 10 to 12; scales 9-75-8; body thick; back elevated; mouth 

 large; mandible projecting and very long, reaching to the hinder margin 

 of the eye or beyond: Lake Ontario and other Great Lakes, in deep 

 water; spawning in the summer. 



L. nigripinnis (Gill). Blueiin; blacklin. Length 450 mm.; head 

 and depth 4; color dark bluish above; sides silvery, with dark dots; tins 

 black; rays of dorsal iin 11; anal 12; scales 8-75-8; body elliptical; 



Fig. 19. — Leiicichthys lullibee {from Jordan cs' Eierniann's Salmonoid Fishes of the Great Lakes). 



mouth large: Lake Michigan, and small lakes of Wisconsin and Minne- 

 sota, in deep water; common. 



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: Lake Michigan, in 

 deep water; locally abundant. 



L. zenithicus (J. & E.). 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 

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

 water. 



L. manitouliftus J. & E. Head 4; depth 3.4; color dark above the 

 lateral line, silvery below; lins blackish; rays of dorsal Iin 12; anal 13; 

 scales 8-71-8; adipose Iin very small: North Channel of Lake Huron; 

 abundant. 



