U. S. B. F.— Doc. 888. 



PLATE IV. 



FIG. 1.— SPADEFOOT iSCAPHIOPUS HOLBROOKII). POSSIBLE SPECIES; 

 NATURAL SIZE. 

 (After Overton. Mus. Brooklyn Inst. Arts and Sci. Sci. Bull., Vol. 2. No. 3.) 



FIG. 2.— COMMON TOAD (BUFO AMERICANUS). 

 POSSIBLE SPECIES; NATURAL SIZE. 



FIG. 3.— WOOD FROG (RANA SYLVATICAj. 

 POSSIBLE SPECIES; NATURAL SIZE. 



