MR. W. K. PARKER ON THE SKULL IN THE BATRACHIA. 



PLATE 2. 



riffures. 



1 (p. G9) 



2 



3 



4 



5 (p. 19) 



6 



7 



8 (p. 22) 



Skull of Tadpole of Pseudis paradoxa (A). — Upper view 



The same. Lowei* view 



The same. End view 



Section of occipital arch, below 



Skull of Tadpole of Rana damata (A). — First larva ; 



length, 3^ inches ; tail, 2 inches ; hind legs, 5 lines. 



Cambridge, Mass., U.S. Upper view 



The same. Lower view 



The same. Part of lower arches 



Hyoid and branchial arches of larva of Jiana pipiens (B). 



— Length, 3f inches; tail, 2^ inches; hind legs, f inch. 



Upper view 



Number of 



times 

 magnified. 



2^ 



^3 

 2 



8 



5 

 5 

 5 



