COLOR PLATE XIV 



To show change of color in three North American frogs. 



(1) THE EASTERN WOOD FROG [Rana sylvatica 



LeConte. Providence, R. I.] Any individual frog 

 may be brown of so dark a shade that it is nearly 

 black or so light that it is flesh color; the intermediate 

 phases of coloration may be red, yellow or ashy in tone. 



(2) Rana aurora Bd. and Gird. Seattle, Washington. The 



different sizes represent frogs one year old, two years 

 old, and three or more years old. 



(3) THE GOPHER FROG [Rana tesopus Cope. Orlando, 



Florida.] The spots are always dark brown or black. 

 The background may change from creamy white to 

 dark brown (gray, yellow or purple in tone). 



Refer to Index to locate descriptions. 



