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



PLATE 30. 



Figures. 



Number of 



times 

 magnified. 



1 (p. 164) 



2 

 3 



4 

 5 

 6 (p. 1G7) 



8 (p. 180) 



10 (p. 188) 



11 

 12 

 13 



Skull of Acris Pickeringii (A). — Adult female ; 10 lines 

 long. Carabridge, Ma.ss., U.S. Upper view 



The same. Lower view 



The same. Lower jaw 



The same. Hyo-branchials 



The same. Stapes and columella 



Skull of Acris Pickeringii (B). — Larva, 1 inch 2 lines 

 long ; tail, | inch ; hind legs, \ inch. Same locality. 

 Upper view 



The same. Lower view 



Skull of Tadpole of Hijla ? sp. — 1 inch long ; hind 



legs, 5 lines. Piio Janeiro. Upper view 



The same. Lower view 



Skull of Tadpole o{ Nototrema marsupiatum (B). — Larva, 

 23- inches long ; tail, 1^ inch ; hind legs, 13 lines. South 

 America. Upper view 



The same. Lower view 



The same. Mandibles and lower labials 



The same. Plyoid bar 



10 

 10 

 10 

 10 



20 



10 

 10 



15 

 15 



71 

 ' 2 



n 

 n 



