2 University of Michigan 



scales between the collar and groin. Color (in alcohol) above 

 olive or olive brown with two dark brown or black stripes 

 from the snout to the base of the tail ; a narrow white line 

 from the end of the snout to the arm insertion, sometimes 

 faintly continued to the groin ; below bluish or lead color with 

 or without black spots. 

 Habitat: Colombia. 



Type Specimen: Cat. No. 56037, Museum of Zoology, Uni- 

 versity of Michigan; San Pedro, Colombia; March 25, 1921 ; 

 H. N. Maria, collector. 



Description of Type Specimen: Upper head shields slightly 

 rugose; frontonasal single; prefrontals broadly in contact; 

 parietals and interparietals subequal in size; 6 scales. 4 ante- 

 rior and 2 posterior, form an occipital group ; 3 supraoculars 

 on one side and 2 on the other; loreal present; 6 lower labials; 

 6 upper labials ; chin shields large, i anterior and 4 pairs, the 

 first two pairs forming a suture, the third pair separated by 3 

 scales and the fourth by 7 scales. Two longitudinal rows of 

 enlarged gular scales ; 5 collar shields. Thirty-four scales 

 around the middle of the body; dorsal scales lanceolate, 

 strongly keeled and often tricarinate on the body, on the neck 

 becoming shorter, broader and less strongly keeled toward the 

 head, behind the occipitals rounded and striated; 31 scales 

 from parietals to groin; lateral scales small and ])luntly keeled ; 

 ventral scutes large, all smooth, in 20 rows from the collar to 

 the groin ; 2 enlarged preanal scales. 



Color above brownish olive with two dorsal, longitudinal, 

 black stripes extending from the snout on to the posterior part 

 of the tail, where they are broken up into spots ; a few black 



