XXn INUKX. 



III. OPmDlA—(conlinued). 



Fam. III. Naked Serpents, 64 

 (?en.— Ccecilia, 64 



IV. BATRACHIANS, 65 



Gen. — Rana, 66 



Rana proper, 67 

 Ceratophris, 68 

 Stombus, 69 

 Dactylethra, 6^ 

 Engystoma, 69 

 Hyla, 69 

 Calamita, 69 

 Bufo, 70 

 Bombinator, 72 

 Rhinellus, 72 

 Oxyrynchus, 72 

 Otilophis, 72 

 BreA'^iceps, 72 

 Engystoma, 72 

 Brachycephalus, 72 

 Pipa, 72 



Salamandra, 73 



Terrestrials, 74 

 Aquatic, 74 

 Triton, 74 

 Fossil Man, 75 



Menopoma, 76 



Abranchus, 76 

 Cryptobranchus, 7^ 

 Protonopsis, 76 



Menobranchiis, 76 

 Necturus, 76 



Proteus, 77 



Hypochton, 77 

 Siren, 77 



