1896] Distribution of Batrachia and Reptilia. 1013 
~The district shares with the Chihuahuan the following 
species: 
Bufo punctatus B. & G. 
Dipsosaurus dorsalis Hallow. 
Crotaphytus wislizenti B. & G. 
Callisaurus draconoides Bly. 
Sauromalus ater Dum. 
Uta stansburiana B. & G. 
Uta ornata B. & G. 
Sceloporus zosteromus Cope. 
Phrynosoma coronatum Bly. 
Phyllodactylus tuberculosus 
Wiegm. 
Salvadora grahamiæ B. & G. 
Ophilobolus getulus boylii B. 
& G. 
Chilomeniscus fasciatus Cope. 
Hypsiglena ochrorhynchus 
Cope. 
Natrix valida Kenn. 
Eutænia eques Reuss. 
Trimorphodon lyrop hanes 
Cope. 
Crotalus adamanteus atrox B. 
<E 
Crotalus mitchellii Cope. 
Species common to the Lower Californian district and the 
Western subregion (mostly to the Becki district) are the fol- 
lowing: 
-Hyla regilla B. & G. 
Phrynosoma coronatum Bly. 
-Verticaria hyperythra Cope. 
Gerrhonotus multicarinatus 
. Bly. 
Opibolus getulus boylii B. & G. 
Opibolus getulus californiæ 
Blv. 
Plethodon croceater Cope. 
Total species of the Lower Californian district : 
Peculiar to it, : : : : 14 
Common to the Ghitiwihwai disteiot, i j : 18 
Common to the Western subregion, ‘ i 7 
| 3 39 
Thirty-eight species, one being twice enumerated as common 
to the Chihuahuan district and Western region. . 
The Chihuahuan district possesses the following peculiar 
species: 
