186 



MEMOIRS OF THE CARNEGIE MUSEUM 



Counts and Mbasuhements. 



(No. 1095.) 



(No. 1869.) 



(No. 1870.) 



Anal 



Scale-rows 



Gastrosteges 



Urosteges 



Upper labials 



Preoculars 



Postoculars 



Temporals 



Total length ia mm. . 

 Length of tail in mm, 



1/1 



15 



176 



146/146 



. 8(4.5) 



9(5.6) 



1 



2 



1,2 



1463 



505 



1/1 



15 



168 



152/152 



9(5.6) 



1 



2 



1,2 



1800 



621 



1/1 

 15 



183 



158/1.58 



8(4.5) 



1 



2 



1,2 



1475 



504 



32. Leptophis rostralis Lonnberg. 

 Leptophis rostralis Lonnberg, Ann. & Mag. Nat. Hist. (7), X, 1902, p. 458. 



No. 1862 is the only specimen as yet representing this species in the Carnegie 

 Museum. It is shghtly defective, having lost the end of the tail. It is a female, 

 and was undoubtedly taken by H. H. Smith in Colombia. 



The specimen agrees with Lonnberg's descrijition in all the principal features, 

 though showing some variation. The principal divergence is that in our specimen 

 the preocular is in contact with the frontal. The portion of the rostral visible 

 from above equals one-half the length of the internasals. The internasals are 

 almost (five-sixths) as long as the prefrontals. The frontal is considerably longer 

 than its distance from the end of the snout, but shorter than the parietals. The 

 anterior chin-shields are shorter than the posterior. The color of the upper surface 

 is a uniform dark brown without any visible markings. The upper lip and the 

 lower surface of the head are whitish. The scales of the ventral surface appear to 

 have been dark green; the posterior margin of each is light. The specimen has 

 not been weU preserved to show color, and the loss of the data regarding it is un- 

 fortunate. The number of gastrosteges exceeds that of the type. 



Counts and Measurements. 



Anal 1/1 



Scale-rows 15 



Gastrosteges 180 



Urosteges 86/86* 



Upper labials 9(5.6) 



8(4.5) 



Preoculars 1 



Postoculars 2 



Temporals 1,2 



Total length in mm 373 



Length of tail in mm 94* 



* Tip of tail lost. 



