[37] FISHERIES OF THE UNITED STATES. 423 



14. Coregonus artedi Le Sueur. Lake Herring; Michigan 



Herring. 



Great Lakes and northeastward to Labrador, the eye 

 becoming larger and certain other characters varying 

 to the northeastward. 



10258. Ecorse, Michigan. J. W. Milner. 



15. Coregoiaus artedi var. sisco Jordan. Cisco. 



Small lakes of Michigan, Wisconsin, and Indiana. 

 A form of the preceding modified by residence in small 

 deep lakes. 



21501. Geneva Lake, Wisconsin, June 13, 1878. A. E. Lytle. 



16. Coregonus nigripinnis (Gill) Jor. Blue-pin ; Black-fin. 



Lake Michigan, in deep water; deep lakes of Wisconsin, 

 known from the vicinity of Madison, Wisconsin, 

 whence it has been sent by Fish Commissioner Welsh. 



10257. Grand Haven, Michigan. J. W. Milner. 



17. Thymalius sigrtifer Richardson. Blanket-fish ; Gray- 



ling. 



British America and Alaska, abundant northward. 

 The dorsal fin of males and females is much higher 

 than in the next species. 

 32582. Nulato, Yukon R., Alaska. E. W. Nelson. 



18. Thymalius tricolor Cope. Michigan Grayling. 



Thymalius montanus Milner, Kept. U. S. Fish Comr. (1872-1873) 1874, 

 p. 741. 



Streams of the southern peninsula of Michigan, abun- 

 dant in Ausable River ; headwaters of the Missouri in 

 Montana. 



A game fish of great beauty. 



11115. Ausahle River, Michigan. J. W. Milner. 



19. Stenotics mackenzii Rich. Inconnu. 



Luciotrutta Mackenzii Gunther, Cat. Fish. Brit. Mus, vi, 1866, p. 164. 



Mackenzie's River and its tributaries; Yukon River, 

 Alaska. 



A food-fish of great value ; the largest of the white- 

 fishes. 



10573. Nulato, Yukon River, Alaska, April 2, 1867. W. H. Dall. 



