General Discussion 



71 



Rana sphenocephala 



1. What are the positive distinctions between R. sphenocephala and 

 R. pipiens? 



2. In the southeast does R. sphenocephala breed ahnost every month of 

 the year? 



3. Differences in young stages in tadpoles of i?ana aesopus and Rana 

 sphenocephala. 



4. Are albino eggs often laid in coffee colored water? 



5. Hatching period and larval period may be different with eggs laid 

 almost every month of the year. 



Rana virgatipes 



1. Mating amplexation never observed. 



2. Eggs needed to be identified other than b}^ ehmination. Check 

 need from a mated pair. 



3. Why have R. virgatipes and R. septentrionalis submerged egg masses? 



4. The tadpole description needs supplementation and the tadpole 

 period data is meager. 



5. Transformation data is also fragmentary. 

 Gastrophryne carolinensis. 



1. The vocal powers of the male and the process might be an interesting 

 study. 



2. The egg laying process has not been observed. 



3. The food of the queer tadpole ought to be interesting. 



4. Value of smooth or rough skin in taxonomic analyses of narrow- 

 mouthed toads. 



5. The spiracle, tadpole shape, intestine, absence of normal mouthparts, 

 etc. of tadpole might be made a special study. 



Bufofoivleri, Hyla avivoca, Rana catesheiana 



1. Hyla avivoca will doubtless be found eastward to Georgia and far- 

 ther. Its life history is unknown. 



2. The southeastern distribution of Bujo fowler i in distinction from 

 Bufo americanus and Bufo terrestris and of Rana catesheiana in dis- 

 tinction from Rana grylio and Rana heckscheri is needed. 



