81 



Several genera of mammals, birds, aud reptiles exist iu the Texan 

 region, wliicU constitute its chief claim for distinction from the Louis- 

 iauian ; these are — 



^Mammals. 



Jjicoti/les (Xt.). 

 Bassaris (P. St.). 



Birds. 



Geococcyx (P. S.). 



Reptiles. 



EolhrooUa (C. S.). 

 Phrynosoma (C. S. P.). 

 Stenostoma (Nt. P.). 



None of these are peculiar: those marked (P.) being also found in the 

 Pacific; (C.) the Central; (S.) the Sonoran; and (Et) the Neotropical 

 region. Two striking species of mammals range through the Texan 

 district, viz, the jaguar and the peccary. 



V. Species confined to the Texan district — 21 : 



Caducihrcowhiata. 

 Amblystoma texanum. 



Anura. 



Bufo valliceps (also Mexico). 

 Chorophilus triseriatus clarkii. 

 Hvla carolincnsis semifasciata. 

 Eana areolata areolata. 



Ophldia, 



CrotKlus adamanteus atrox. 



Aucistrodou piscivorns pugnax, 



Elaps' fulvius tener. 



Tantilla gracilis. 



Tantilla hallowellii. 



Tantilla nigriceps. 



Contia episcopa. 



Opliibolus doliatus auuulatus. 



Diadophis jiunctatus stictogenys. 



Coluber lindheimerii. 

 G II 



