4O SCIENCE SKETCHES 



The " Otsego bass " of Otsego Lake in New York, 

 celebrated by De Witt Clinton, is the ordinary 

 white-fish. 



Allied to the American white-fish, but smaller 

 in size, is the Lavaret, Weissfisch, Adelfisch, or 

 Weissfelchen (Coregonus lavaretus], of the moun- 

 tain lakes of Switzerland, Germany, and Sweden. 

 Several other related species occur in northern 

 Europe and Siberia. 



Another American species is the Sault White- 

 fish, Lake Whiting, or Musquaw River White-fish 

 (Coregonus labradoricus) . Its teeth are stronger, 

 especially on the tongue, than in any of our other 

 species, and its body is slenderer than that of the 

 white-fish. It is found in the upper Great Lakes, 

 in the Adirondack region, in Lake Winnepesaukee, 

 and in the lakes of Maine and New Brunswick. It 

 is said to rise to the fly in the Canadian lakes.. 

 This species runs up the St. Mary's River, from 

 Lake Huron to Lake Superior, in July and August. 

 Great numbers are snared or speared by the In- 

 dians at this season at the Sault Ste. Marie. 



The smallest and handsomest of the American 

 white-fish is the Cisco of Lake Michigan (Coregonus 

 hoyi). It is a slender fish, rarely exceeding ten 

 inches in length, and its scales have the brilliant 

 silvery lustre of the Moon-eye and the Lady-fish. 



The Lake Herring, or Cisco (Coregonus artedi), 

 is, next to the white-fish, the most important of the 

 American species. It is more elongate than the 

 others, and has a comparatively large mouth, with 

 projecting under jaw. It is correspondingly more 

 voracious, and often takes the hook. During the 



