490 AMERICAN FISHES. 



" Michigan Herring." The Lake Herring is one of the most abundant 

 fishes of the Great Lake region, probably second only to the White-fish 

 in importance as a food-fish. It goes in large schools, and is taken m 

 great numbers in comparatively shallow waters. It ranges northeastward 

 to Labrador, the eye becoming larger eastward. The sub-species sisco of 

 Jordan is a form modified by residence in small deep lakes in Wisconsin 

 and Indiana, and probably in Northern New England and New York. 

 Its usual length is little more than a foot. Its mouth is much larger than 

 that of the White-fish, and its range of food is doubtless greater. It 

 usually remains in deep water until in November and December, when 

 great numbers come near shore to spawn in the shallow waters. As a 

 food-fish the Lake Herring ranks well, and although it is considerably 

 inferior to Coregonus cliipeiformis, it is sent to market in immense 

 qunn titles. 



Coregonus Hoyi, occurs in Lakes Michigan and Ontario, in deep water ; 

 in the lakes of Western New York (particularly Geneva Lake) where it 

 sometimes dies in great numbers. It is known as "Frost fish " in some 

 parts of New York. 



The Mongrel White-fish, Coregonus tullibec, is a species occasion- 

 ally taken in the Upper Great Lakes, where it is generally considered a 

 hybrid between a White-fish and a Lake Herring, hence the name of "Mon- 

 grel White-fish." It is a rare fish in collections, and nothing distinctive 

 is known of its habits. Its range extends northward, to Alaska, where 

 young have recently been taken in the Kowah River. 



The Menomonee White-fish, Coregonus quad7'ilateralis, inhabits the 

 Lakes of New England, Upper Great Lakes, and is found northwestward 

 to Alaska ; occurring at Kodiak Island in the Gulf of Alaska. It is re- 

 placed in the Rocky Mountain, and Sierra Nevada regions by C. Williani- 

 sonii. The name of "Round-fish" is given to it by Richardson, and 

 that of " Shad Waiter" (Winnipiseogee Lake) by Prescptt. In the Great 

 Lakes it is much less abundant than the common White-fish, and its size 

 is less than that of the White-fish. 



Rocky Mountain White-fish, Coregonus Williamsonn, occurs in the 

 upper tributaries of the Missouri and streams flowing into the Columbia ; 

 also in clear lakes from the Rocky Mountains to the Pacific ; it is abundant 

 in the Sierra Nevada. This species is usually known as the White-fish ; 

 in Utah as the "Mountain Herring." It reaches a length of a little more 



