LAMPREYS AND FISHES OF INDIANA. 227 



from the following Indiana localities: Logansport (4, '94, 37); Carroll 

 County (23, '88, 48); Clarke and Ohio Counties (23, '88, 56) ; Sullivan 

 €ounty (1, '77, 45, 69); -Gibson and Posey Counties (4 '88, 163); 

 Evansville (i, '88, 166) ; Vigo County (16, 95). Nelson (U, No. 1, 

 44) states that it is common in Lake Michigan about the mouth of 

 Chicago River. 



This fish is stated to be abundant in Lakes Michigan and Erie, and its 

 presence there is regarded as resulting from the migration of the fish 

 through the canals. It would seem to be possible for such a fish to reach 

 the lakes through natural waterways. As regards its food habits, 

 Forbes says that it is a mud-loving species. It has the habit of sw^allow- 

 iog large quantities of mud containing a considerable amount of vegetable 

 matter. In the vicinity of distilleries it feeds on the slops. Its stomach 

 is muscular and resembles the gizzard of a chicken. A very small 

 quantity of animal food is taken, small crustaceans, mollusks and insects. 

 Professor Forbes makes the interesting statement that this fish, which is 

 toothless in the adult stage, has, while young, a series of teeth on its 

 maxillaries. Although a fine looking fish the hickory shad is utterly 

 worthless as food for human beings. Its flesh is full of fine bones. 

 It is not a worthless fish, however, since it furnishes an inexhaustible 

 stock of food to the predaceous food-fishes. 



Family SALMONID^E. 



Body elongated and more or less compressed. Scales thin, cycloid. 

 Head scaleless. Teeth present or absent. Upper margin of mouth formed 

 by the maxillary, which is provided with a supplementary bone. An 

 adipose fin present. Lateral line present and complete. 



An extensive family of extremely valuable f jod-fiyhes, including the 

 white-fishes, the salmons, trout, etc. 



Teeth feebly developed or none. Scales of lateral line, seventy-five 

 to one hundred. Coregonus, p. 227. 



Teeth well developed. Scales of lateral line, one hundred and 

 seventy-five or more. SalveUmis, p. 231. 



Genus COREGONUS Linn. 

 WHITE-FISHES. 



Body oblong, considerably compressed, tapering toward snout and tail. 

 Head small. Mouth small, the maxillary with a supplementary bone. 

 Teeth, usually none ; if present, minute. Scales rather large. 



A genus containing a considerable number of species, which inhabit 

 the larger lakes of the cooler portions of the northern hemisphere. 



