The Inhabitants of the Aquarium 213 



may be used for the aquarium where, on 

 account of its quick, graceful movements, 

 it will be found very interesting. This 

 perch is very abundant in the Eastern States 

 where it is found in almost all ponds of fresh 

 water. 



The Mudfish, Bowfish, Grindle, John A. Grin- 

 die (Amia calva) is a rather slender fish, 



■ ' 



Fig. 96. Mudfish or Bowfish, Amia calva. 



with a body nearly as broad as it is high. 

 The dorsal fin extends over about three- 

 fifths of the back, its outer line running par- 



