186 



ZOOLOOT 



female of Notofrema 

 marsvpiatum of the 

 Andes, has a sac on its 

 back in which tlio 

 young are carried. 

 Tlie Noiodelphys of 

 Soutli America lias 

 similar liabits; for ex- 

 ample, tlie female 

 {y^ofodelpJij/s ovifera) 

 has a dorsal sac a cen- 

 timetre deep in which 

 the eggs are carried. 

 In the yoting of this 

 and of Gastrotlieca. 



Af 





^^ 



Fio. S31.— Development of Hyla versicolor. Miss Hinckley del 



