52 



BREEDING HABITS OF AMPHIBIA 



FROGS 



OVIPOSITION IN HYLA CRUCIFER 



(Drawings by Mr. Sidney Aberman) 



a-Normal amplexus of Hyla andersoiili; D-Klrst pliase of ovl- 

 position; c-Second pliase of ovlposltion; d-Tlie back depres- 

 sion release meclianlsin. 

 (From Aronaon 19'+5: Copela '+:256 - Drawings by Mr. Sidney Aberman) 



