THE SMELT 



311 



its fishories being valued at nearly three million dollars a 

 year. 



Fig. 288. — Corcgonus, the lake whitefish. Much reduced. From Goode. 



Leaving now the sahnon, we may briefly consider some of 

 the other more important families of bony fishes. 



Fig. 289. — Mnronc nnirrirana, the white perch. The fish is searching for 

 food along the bottom of the aquarium, an instinct which it shows in 

 nature also. About one-third nat. size. Photo, of living animal by Dr. 

 R. W. Shufcldt, from "Bull. U. S. Fish Com.," 1899. 



