THE SALMONS 



above and silvery below, with dark specks on the 

 scales. It is closely allied to, but larger than the 

 celebrated cisco of Lake Geneva, Wisconsin, which 

 comes to the surface during the latter part of May 

 and the early days of June, feeding voraciously 

 on the May fly which at that period appears in 

 myriads on the water and shores of Lake Geneva. 

 The long-jaw or bloater cisco [Argyrosomus 

 prognathus, the latter name being from two Greek 

 words meaning "forward" and "jaw") lives in 

 the deep waters of the Great Lakes and probably 

 in other adjacent localities. It may be differen- 

 tiated from the other ciscoes by the bright golden 

 reflection on a small area back of the eye, and by 

 the distinct, but light, longitudinal stripes (formed 

 by the minute specks on the edges of the scales) 

 along the entire length of the body. 



Another inhabitant of the Great Lakes, notably 

 Lake Michigan, is the bluefin or blackfin cisco, 

 the Argyrosomus nigripinnis of the books, the 

 specific appellation being from the Latin and sig- 

 nifying " black " and " fin," and by the blue-black 

 coloration of all of its fins it may be distinguished 

 from its fellows of the cisco class. 



The tullibee or mongrel whitefish {Argyrosomus 

 tulltbee, the specific title being an Indian name for 

 the fish) is a handsome and well-marked species, 



9 



