414 COLUBRID. 
tt Ventrals 241 or more; anterior temporal large 
and deep. 
Ventral8 241-262; subcaudals 30-39 .. 22. lemniscatus, p. 430. 
Ventrals 290-308 ; subcaudals 35-45 .. 23. filiformis, p. 430. 
ttt Ventrals 210 or more; anterior temporal very 
narrow, sometimes absent, 
Ventrals 210-278 0. iives cose ss sear 24. mipartitus, p. 431. 
Ventrals S05 oijn 000 stb es sess. cannee 25. fraseri, p. 432. 
3. Symphysial in contact with the anterior chin-shields. 
Ventrals 255-268; temporals 141; 
frontal much broader than the supra- 
OCular......sscscceeeeess eee eee 26. mentalis, p. 432. 
Ventrals 258 ; temporals 141; frontal 
little broader than the supraocular .. 27. ancoralis, p. 432. 
Ventrals 240-315; no anterior temporal. 28. narduccit, p. 433. 
1. Elaps surinamensis. 
Seba, Thes. ii. pl. lxxxvi. fig. 1 (1735). a 
Elaps surinamensis, Cuv. R. An. ii. ’ 84 (1817); Schleg. Phys. 
Serp. ii. F 445, pl. xvi. figs. 8 & 9 (1837), and Abbild. p. 137, 
pl. xlvi. fig. 9 (1844) ; Dum. §& Bibr. vii. p. 1224 (1854) ; Giinth. 
Cat. p. 284 (1858); Jan, Icon. Gén. 42, % ili, fig. 1 (1872) ; 
Cope, Journ. Ac. Philad, (2) viii. 1876, p. 182. 
Eye measuring a little more than half its distance from the mouth. 
Rostral a little broader than deep; frontal very narrow, narrower 
than the supraocular, at least twice as long as broad, as long as 
its distance from the rostral or the end of the snout, shorter than 
the parietals ; latter longer than their distance from the internasals ; 
one pree- and two postoculars ; temporals 1+2; seven upper labials, 
fourth entering the eye; four lower labials in contact with the 
anterior chin-shields, which are as long as or longer than tho 
posterior. Scales in 15 rows. Ventrals 167-182; anal divided; 
subcaudals 33-37. Red, with black annuli disposed in threes, the 
middle one broad, separated by narrow yellow interspaces; 7 or 8 
sets of annuli on the body ; the red scales dotted with black ; head 
red above, with the shields black-edged, followed by a black cross- 
band behind the parietals. 
Total length 740 millim.; tail 95. Grows to 1900 millim. 
Venezuela, Guianas, Northern Brazil, N.E, Peru. 
a. 3 (V.170; O. 37). British Guiana. 
b. Hgr. d (V. 167 ; CO. 36). Para, Dr. E, A. Géldi [P.}. 
2. Elaps heterochilus. 
Elaps heterochilus, Mocquard, Bull. Soc. Philom. (7) xi. 1887, p. 89, 
Snout narrow. Rostral broader than deep; frontal once and a 
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