428 



COI.UBKIDJS. 



Eye measuring two thirds to three fourths its distance from the 

 mouth in the adult, as long as its distance from the mouth in the 

 young. Kostral a little broader than deep; frontal as broad as or 

 slightly broader than the supraocular, once and two thirds to twice 

 as long as broad, as long as its distance from the end of the snout, 

 shorter than the parietals ; latter a little longer than their distance 

 from the internasals ; one pr£e- and two postoculars ; temporals 1 + 1 

 (rarely 1 + 2) ; seven upper labials, third larger than fourth, third 

 and fourth entering the eye ; three or four lower labials in contact 

 with the anterior chin-shields, which are as long as or shorter than 

 the posterior. Scales in 15 rows. Ventrals 197-230 ; anal 

 divided ; subcaudals 15-26. Tail ending very obtusely. Body 

 with black annuli disposed in threes, the red and yellow interspaces 

 tipped with black ; upper surface of head, as far as the posterior 

 border of the parietals, black, the shields edged or spotted with 

 yellow or red ; parietals often red in front. 



Total length 1350 millim. ; tail 70. 



Southern Brazil, Uruguay, Paraguay, Argentina. 



A. 10 to 12 sets of annuli on the body ; red spaces large ; labials 



yellow, black-edged. 



.a-b, c. S (V. 225, 227 ; Brazil. Mr. Clausen [C.]. 



0. 22, 21) & hgr. 

 (V.224; 0.18). 



B. 12 to 15 sets of annuli on the body ; red spaces large ; labials 



and temporals black and yellow. 



.or-b. $ (V. 216, 211 ; Rio Grande do Sul. 

 0. 24, 22). 



c. ? (V. 213 ; C. 21). Rio Grande do Sul. Dr.H. v-lheringfO.]. 



d. S (V. 223; 0.21). S. Lorenzo, Rio Dr.H.v. Ihering[C.]. 



Grande do Sul. 



e. (J (V. 230 ; 0. 20). Asuncion, Paraguay. Dr. J. Bohls [0.]. 

 J. S (V. 224 ; 0. 24). Argentina. Zoological Society. 



g. 3 (V. 220 ; 0. 23). ? Zoological Society. 



C. 12 to 15 sets of annuli on the body ; red spaces small ; labials, 



temporals, and chin-shields black, light-edged. 



.«-/. c? (V. 213, 204, 197, Soriano, Uruguay. R. Havers, Esq. [P.]. 



203 ; C. IS, 18, 16, 16) 

 & $ (V. 197, 204; 

 0. 17, 15). 



^ 21. Elaps marcgravii. 



Elaps lemniscatus, part., Sckneid. Hist. Amph. ii. p. 291 (1801); 



Sohleg. Phys. Serp. ii. p. 444 (1837) ; Bum. (f- Bibr. vii. p. 1217 



(1854) ; Giinfh. Cat. p. 234 (1858), and Ann. Sr Mag. N. R. (3) 



iv. 1859, p. 167. 

 Vipera lemniscata, part., Daud. Mept. vi. p. 13 (1803). 

 Elaps marcgravii, Wied, N. Acta Ac. Leop.-Carol. x. i. 1820, p. 109, 



and Abbild. Nat. Sras. (1825). 

 ■ ibibiboca, Merr. Tent. p. 142 (1820). 



