182 COLUBPvID^, 



Ventrals 133-163; anal divided; subcaudals 83-110. Brown 

 above, with one or two yellowish streaks along each side, the 

 lowermost bordered inferiorly by a dark purplish-brown streak 

 running along the ends of the ventrals and the lower half of the 

 outer row of scales ; this dark streak may be replaced by a series 

 of black spots along the outer ends of the ventrals ; a dark brown 

 streak on each side of the head, passing through the eye ; upper 

 labials yellowish above, brown inferiorly ; lower parts uniform 

 yellowish. 



Total length 580 millim. ; tail 200. 



Costa Eica, Colombia, Ecuador, Venezuela. 



«. 2 (V. 162; C. 83). Intac, Ecuador. Mr. Buckley [C.]. 



b-(l. c? (V. 144, 133 ; C. ?, Irazu, Costa F. D. Godman, Esq. [P.]. 

 110) & $ (V. 151 ; C. ?). Eica. (Types oi Ablahes decipiem.) 



3. Urotheca euryzona. 



Pliocercus euryzonus, Cope, Proc. Ac. P/tikid. 1862, p. 72, and 1865, 



p. 190. 

 Liophis splendens, Jan, Arch. Zool. Anat. Pliys. ii. 1863, p. 302, and 



Icon. Gen. 18, pi. v. fig. 1 (1866). 

 Elapochrus euryzona, Gilnth. Biol. C.-Am., Eept. p. 197 (1893). 



Eye moderate ; snout short and broad. Rostral twice as broad 

 as deep, just visible from above ; iuternasals half as long as the 

 praefi'ontals ; frontal about once and a half as long as broad, slightly 

 longer than its distance from the end of the snout, shorter than the 

 parietals ; loreal as long as deep ; one prseocular, with a small sub- 

 ocular below it; two postoculars ; temporals 1-1-2; eight upper 

 labials, fourth and fifth entering the eye ; five lower labials in 

 contact with the anterior chin-shields, which are a little shorter 

 than the posterior. Scales in 17 rows. Ventrals 120-138 ; anal 

 divided; subcaudals 116. Black above, with narrow pale (red?) 

 transverse lines, about half the length of a scale, and equidistant ; 

 these lines widen into irregular broad cross bars on the abdomen, 

 where the red and black are in nearly equal proportions ; a few 

 small pale spots on the head. 



Total length 560 millim. ; tail 260. 



Colombia and Ecuador. 



a. cJ (V. 120; C. 116^. Nanegal, Ecuador, E. Whymper, Esq. 



3000 feet. [C.]. 



4. Urotheca elapoides. 



Pliocercus elapoides, Co;;?, Proc. Ac. Philad. 1860, p. 253 : Salvin, 



Proc. Zool. Soc. 1861, p. 227 ; Cope, Proc. Ac. Philad. 1865, p. 190 ; 



Peters, Mon. Perl. Ac. 1869, p. 876; F. Miill. Verh. nat. Ges. 



Basel, vi. 1878, p. 660. 

 Elapochrous deppii, Peters, Mon. Berl. Ac. 1860, p. 294, pi. — 



fig. 2. 

 Pleiocercus sequalis, Salvm, I. c. ; Cope, Proc. Ac. Phihd. 1865, 



p. 190; F. Miill. I. c. p. 662, pi. ii. fig. A. 



