CONTENTS 



CLASS AMPHIBIA 



Order Caudata 



Suborder Proteida 



Family Necturidae 



Genus Necturus 



Family Typhlomolgidae 2 



Genus Typhlomolge 2 



Suborder Mutabilia 2 



Family Amphiumidae 2 



Genus Amphiuma 2 



Family Cryptobranehidae 3 



Genus Cryptobranchus 3 



Family Salamandridae 3 



Genus Triturus 3 



Family Ambystomidae 4 



Genus Ambystoma 4 



Genus Dicamptodon 7 



Genus Rhyaeotriton 8 



Family Plethodontidae 8 



Genus Batrachoseps 8 



Genus Hemidactylium 9 



Genus Plethodon 10 



Genus Ensatina 12 



Genus Stereochilus 13 



Genus Gyrinophilus 13 



Genus Maneulus 14 



Genus Pseudotriton 14 



Genus Eurycea 15 



Genus Hydromantes 17 



Genus Aneides 17 



Genus Desmognathus 19 



Genus Leurognathus 20 



Genus Typhlotriton 20 



Suborder Meantes 21 



Family Sirenidae 21 



Genus Siren 21 



Genus Pseudobranchus 21 



Order Salientia 22 



Suborder Costata 22 



Family Discoglossidae 22 



Genus Ascaphus 22 



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