PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Third Series 

 Zoology  Vol. IV, No. 5 



Issued March 14, 1906 



ON THE OCCURRENCE OF THE SPOTTED NIGHT 



SNAKE, HYPSIGLENA OCHRORHYNCHUS, IN 



CENTRAL CALIFORNIA; AND ON THE 



SHAPE OF THE PUPIL IN THE 



REPTILIAN GENUS ARIZONA 



BY JOHN VAN DENBURGH 

 Curator of the Department of Herpetology 



On the Occurrence of the Spotted Night Snake, 



HyPSIGLENA OCHRORHYNCHUS, IN CENTRAL 



California 



The little snake to which Cope, in 1860,^ gave the name 

 Hypsiglena ochrorhynchus was first described from specimens 

 secured at Cape San Lucas, Lower California. It has 

 since been found to range across Arizona and northern 

 Mexico to Texas. As recently as 1893, so little was 

 known of the distribution of this snake in California that 

 Dr. Stejneger,^ in recording the single specimen secured by 



1 Proc. Acad. Nat. Sci. Phila. 1860, p. 246. 



2 N. A. Fauna, no. 7, 1893, p. 204. 



* 



