THE COLUMELLA AUEIS IN AMPHIBIA. 

 B. F. KINGSBURY AND H. D. KHED. 



PLATE I. 



P-q. 



Fig. 22. 



Fig. 23. 



Col. 

 -Op. 

 --.M.op. 



Fig. 24. 



TiiB Journal of Morphology. — Vol. XX, No. 4. 



