1893.] NATURAL SCIENCES OF PHILADELPHIA. 387 



Phrynosoma cornutum Hasl. 



Fort Supply, Mobeetie, and Hennessy. 

 Cnemidophorus sexlineilus L. 



Fort Supply and Miami. 

 Ophisaurus ventralis Baud. 



Hennessy. 

 Ophibolus doliatus sysputus Cope. 



Hennessy, Oklahoma Territory. 

 Ophibolus getulus sayi Ilolbr. 



Mobeetie. 

 Pityophis sayi sayi Schleg. 



Fort Supply. 

 Coluber spiloides D. & B. 



Fort Supply. 

 Bascanicum flagelliforme testaceum Say. 



Fort Supply. 

 Diadophis amabilis docilis B. & G. 



Hennessy, Oklahoma Territory. 

 Heterodon nasicus nasicus B. & G. 



Fort Supply. 

 Tropidoclonium lineatum Hallow. 



Hennessy. 



Eutaenia elegans marciana B. AG. 

 Fort Supply. 



Crotalaphorus catenatus edwardsii B. & G. 



Mobeetie and Hennessy. These localities extend the range of 

 this species. It is characteristic of the sandy country that extends 

 from Mobeetie eastward, and which is also seen about Hennessy in 

 central Oklahoma. 



Crotalus confluentus Say. 



The Staked Plain west of Mobeetie. 



