1901.] NATURAL SCIENCES OF PHILADELPHIA. 613 



The snake here described was received alive at the Zoological 

 Gardens, on October 22, and came from the same locality and 

 collector as the lately described Coluber subocularis. In propor- 

 lions and scale formula it comes nearest to 0. zonatus Blain. 

 (^ 0. pyrrhomelas Cope), but the head is narrower, the snout 

 more contracted and there are two more rows of scales, while the 

 peculiar disposition of the doi'sal cross bands is quite unlike any 

 Ophibolus previously known. The species is perhaps intermediate 

 between 0. zonatus and 0. leonls Gunth., the type of which came 

 from Nuevo Leon, Mexico. 



