The Frog Book 



Plate I 



* 



-4.^^. 



Figs, i and 2.— The SPOTTED SALAMANDER (Amblystoma punclatum Linn). Providence, R. \. [Enlarged.] 

 The spherical eggs enclosing the embryos are within an external mass of jelly. The full-grown larva has a tail fin and ex- 

 ternal gills adapting it to water life. 



'^^ 



Fig. 3. — SPOTTED SALAMANDERS i year old. Black and yellow. These are typical representatives of the 

 Urodela which together with the Salientia, or frog-like forms, constitute the two classes of the North American 

 Batrachia. 



