griffin: ophidia from south America in carnegie museum 221 



original specimens described by Boulenger. Our specimen is considerably larger 

 than any of those, but otherwise is very hke them. The Carnegie Museum speci- 

 men differs structurally only in that the eye is slightly larger (three-quarters as 

 long as its distance from the mouth) ; the frontal is once and a quarter as long as 

 broad, and the parietals are a little longer than their distance from the internasals. 



Counts and Measurements. 



(No. 126.) 



Anal 1/1 



Scale-rows 1^ 



Gastrosteges 221 



Urosteges 22/22 



Upper labials 7(3.4) 



Preoculars 1 



Postoculars 2 



Temporals Ij 2 



Total length in mm 1602 



Length of tail in mm 65 



Family AMBLYCEPHALID^ Gunther. 



Genus Cochliophagus Dumeril & Bibron. 



82. Cochliophagus catesbyi (Sentzen). 



Coluber catesbyi Sentzen, Meyer's Zool. Archiv, II, 1796, p. 66. 

 Leptognathus catesbyi Boulenger, Cat. Snakes, III, 1896, p. 449. 

 C. M. No. 20, cf , Las Juntas, Bolivia, Steinbach coll., Dec, 1913. 

 C. M. No. 21, cT, Las Juntas, Bolivia, Steinbach coll., Dec, 1913. 

 C. M. No. 28, cf , Las Juntas, Bolivia, Steinbach coll., Dec, 1913. 

 C. M. No. 2034, cf , Brazil, no data. 



Counts and Measurements. 



(No. 20.) 



Anal 1 



Seale-rows ' 13 



Gastrosteges 176 



Urosteges , 94/94 



Upper labials I f9(4.5.6) 



' t8(3.4..5) 



Preoculars 



Postoculars 



Temporals 



Total length in mm. . 

 Length of tail in mm. 



1 

 1,2 

 530 

 141 



(No. 21.) 



1 



13 



179 



78/78 

 8(4.5) 



2 



2 



1,2 



208 



50 



(No. 28.) 



1 



13 

 175 



87/87 

 18(4.5.6) 

 18(4.5) 



2 



2 



1,2 



186 



45 



(No. 2034.) 



-1 



13 



193 

 93/93 



8(4.5) 



2 



2 



1,2 



747 



197* 



'Tip of tail lost. 



