Reptiles of the Cape Region. 97 



ably conclude, because the reptiles of the Coronados, and most 

 other Pacific Coast Islands, are similar to those of adjacent parts 

 of themain land, that these islands were formerly connected with 

 and were a part of the main land, though we cannot be positive 

 that such was the fact. 



A comparison of the reptiles of the southern and northwestern 

 portions of the peninsula, shows great difference in genera and 

 species, though a few are common to both. 



Some of the birds of the Cape region should be found between 

 San Diego and La Paz, while others are probably but local. Cer- 

 tainly, the peninsula presents rare opportunities for the energetic, 

 intelligent explorer. L. Beldmg, 



San Diego, March 20, 1887. 



REPTILES OF THE CAPE REGION OF LOWER 

 CALIFORNIA. 



The following is a list of the reptiles I collected in Lower Cali- 

 fornia, the majority of which were also found by Xantus. My 

 specimens were identified by Dr. H. C. Yarrow, Honorary Cura- 

 tor of the department of reptiles in the United States National 

 Museum: 



1. Pseudemys ornata, Gray. Found only in the San Jose 

 River. 



2. Chirotes canaliculatus, Cuvier. Said by the Mexicans to 

 be dangerous. I doubt their absurd tales concerning this. 



3. Cnemidophorus maximus. Cope. " Verico," "Axotle" of 

 the Mexicans of Lower California. 



4. Verticaria hyperythra, Cope. 



5. Gerrhonotus multicarinatus. Baird and Girard. 



I found this in the south only above 3,500 feet altitude. Also 

 on the Coronado Llands. 



6. Calisaurus dracontoides, dracontoides (Blainv), Cope. 

 Cachura de la arena or " Sand Lizard." I found this also at 

 Real del Castilla, in the northern part of the peninsula, 95 miles 

 south-east of San Diego. 



7. Sauromatus ater, Dumeril. Only found by meat Espiritu 

 Santo Island and at Guaymas. Dr. Streets (Bull. U. S. Nat. 

 Mus. No. 7) found it on Angel Island, several hundred miles 

 north of Espiritu Santo. It will probably be found on the Gulf 

 Coast of the peninsula north, if not also south of La Paz, though 

 the Aborignal tribes may have planted them on these islands 

 after obtaining them in Sonora or Arizona. 



8. Crotaphytus Copei, Yarrow. A new species. 



9. Dipsosaurus dorsalis, Baird and Girard. Cachuron, of 

 the Mexicans. Small lizards are called CacJniras or Caclmrltas. 



