428 COLUBRID. 
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. Rostral 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 pre- and two postoculars; temporals 141 
(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. & (V. 225, 227; Brazil. Mr. Clausen [C.]}. 
G. 22, 21) & her. 
(V. 224; C. 18). 
B. 12to 15 sets of annuli on the body; red spaces large; labials 
and temporals black and yellow. : 
a-b. 2 (V. 216, 211; Rio Grande do Sul. 
C. 24, 22 
e. 9 (V. 218; C. 21). Rio Grande do Sul. Dr. H. v. Ihering [C.]. 
d. g (V. 223; C. 21). 8. Lorenzo, Rio Dr. H.v. Ihering | C. }. 
Grande do Sul. 
e. do (V. 230; C. 20). Asuncion, Paraguay. Dr. J. Bohls [C.]). 
SF. 2 (V. 224; CO. 24). Argentina. Zoological Society. 
g. & (V. 220; C. 28), . ——P Zoological Society. 
C. 12 to 15 sets of annuli on the body; red spaces small; labials, 
temporals, and chin-shields black, light-edged. 
a-f. 3 (V. 213, 204,197, Soriano, Uruguay. R, Havers, Esq. [P.]. 
203; C. 18, 18, 16, 16) 7 ; 
& 9 (V. 197, 204; 
C. 17, 15). 
21. Elaps marcgravii. 
Elaps lemniscatus, part., Schneid. Hist, Amph. ii. p. 291 Ca 
Schleg. Phys. Serp. ii. p. 444 (1837) ; Dum. & Bobr. vii. p. 1217 
(1854) ; Giinth. Cat. p. 234 (1858), and Ann. § Mag. N. H. (3) 
iv. 1859, p. 167. 
Vipera lemniscata, ale Daud, Rept. vi. p. 13 (1808). 
Elaps maregravii, Wied, N. Acta Ac. LeopCarol. x. i. 1820, p. 109, 
and Ablild, Nat, Bras. (1825). 
—— ibibiboca, Merr. Tent. p. 142 (1820). 
