FOOD AND FEEDING HABITS 



15 



jaws, but this is not true of toads everywhere. The 

 tree-toads (which are toads not frogs) have teeth on 

 the upper jaw, and some real tree-frogs {Dend/ro- 

 hatidcB) have no teeth on either jaw. In the tailed 

 amphibians there are 

 usually teeth on both 

 jaws, but the siren 

 has a beak only, like 

 that of turtles and 

 some fishes. Tad- 

 poles of the frogs 

 and toads have simi- 

 lar beaks. In the 

 Csecilians there are 

 teeth on both jaws — 

 especially the lower. 



Food and Feeding 

 Habits 



In the grown-up 

 state, when not con- 

 fined, all amphibians 

 appear to be either 

 flesh-eaters or insect- 

 eaters. In confine- 

 ment many tailed 

 forms will eat bread 

 and milk, or bread 

 alone, and other 



cooked forms of vege- p^^ 9.-Tooth of labyrinthodont, 



table food. But their natural size. 



