CLASSIFICATION. 35 



CLASS II. AMPHIBIA. 



Order 1. URODELA. 

 Suborder (1). ICHTHYOIDEA. 

 Group A, PERENNIBRANCHIATA. 

 Family Menobranchidae. Menobranchus. 

 Family Proteidae. Proteus olm. 

 Family Sirenidae. Siren. 



Group B. DEROTREMATA. 

 Family Amphiumidae. Megalobatrachus. 



Cryptobranchus (Menopoma). 

 Amphiuma. 



Suborder (2). SALAMANDRINA. 



Family Salamandridae. Salamandra- salamander. 



Molge newt. 

 Onychodactylus. 

 Amblystoma. 



(Siredon axolotl, larval Am- 

 blystoma). 

 Batrachoseps. 

 Spelerpes (Gyrinophilus). 



Order 2. LABYRINTHODONTIA. 

 Group Lepospondyli. Branchiosauru*. 

 Group Temnospondyli. Archegosaurus. 



Nyrania. 

 Euchirosaurus. 

 Group Stereospondyli. Capitosaurus. 



Mastodonsaurus. 

 Order 3. GYMNOPHIONA. 

 Family Caeciliidae. Siphonops. 

 Epicrium. 



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