92 



Sceloporus oriiatns. 

 Sceloporus jariovii. 

 Sceloporus i)oiusettii. 

 Sceloporus torquatus. 

 Sceloporus couchii. 

 Sceloporus marmoratus. 

 Sceloporus clarkii. 

 Phrynosoma modestum. 

 Phrynosoma maccallii. 

 Phrynosoma regale. 

 Phrynosoma planiceps. 

 Phrynosoma hernandezii. 

 Coleonyx variegatus. 

 Phyllodactylus tAiberculatus. 



Testudinata. 

 Cinosternum sonoriense. 

 Cinosternum henrici. 

 Ciuosternum flavesceus. 

 Testudo agassizii. 

 Phrynosoma platyrhinium has as yet been observed in Nevada only. 



X. — THE LOWER CALIFORNIAN REGION. 



X*. Species peculiar to the Lower Californian region — 27 : 



Urodela. 



Plethodon croceater. 



Anura. 



Hyla curta. 



Ophidia. 

 Crotalus enyo. 

 Oro talus mitchellii. 

 Tantilla planiceps. 

 Chilomeniscus stramineus. 

 Ophibolus californiae. 

 Ophibolus getulus conjunctus. 

 Hypsiglena ochrorhyncha ochrorhyncha. 

 Phimothyra decurtata. 

 Pityophis vertebralis. 

 Bascanium aurigulum. 



