48 
Transactions Texas Academy of Science. 
marks on the head. Near the middle of the gray spaces of the body 
some of the scales of many of the rows have black tips. The tail is 
light brown above and has a basal broad black, and two other narrow 
brown annuli. Below, dirty white with closely placed shades of brown. 
(Stejneger, “Poisonous Snakes of North America”). 
GEOGRAPHICAL DISTRIBUTION. 
This species has been reported from Eagle Pass and Presidio Del 
Norte, Texas. 
HABITS. 
Nothing is known of its habits. 
