241, ELAPs. 415 
half as long as broad; one pre- and two postoculars; temporals 
1 or 1+1; six upper labials, second ‘and third entering the eye; 
first lower labial formed by the fusion of two. Scales in 15 rows. 
Ventrals 209; anal entire; subcaudals 29. Coloration as in 
E. marcgravit. 
Total length 553 millim.; tail 43. 
Brazil. 
3. Elaps euryxanthus. 
Elaps fulvius, part., Giinth. Ann. & Mag. N. H. (8) iv. 1859, 
. 170. 
euryxanthus, Kennicott, Proc. Ac. Philad. 1860, p. 337; Cope, 
Proc. Ac. Philad. 1861, p. 296; Cragin, Bull. Washburn Laborat. 
i. 1884, p. 8; Cope, Proc. U.S. Nat. Mus, xiv. 1892, p. 681; 
Stejneger, Rep. U.S. Nat. Mus. f. 1893, p. 362, pl. ii. (1895). 
Eye much shorter than its distance from the mouth. Rostral 
large, nearly as deep as broad, its upper portion nearly as long as 
its distance from the frontal; internasals nearly as long as the 
prefrontals; frontal small and narrow ; parietals small; one pre- 
and two postoculars; temporals 14+2; seven upper labials, third 
and fourth entering the eye, seventh very small; chin-shields very 
short, the anterior in contact with three lower labials. Scales in 
15 rows. Ventrals 215-241; -anal divided; subcaudals 21-29. 
Body with 11 or more black annuli edged with yellow and sepa- 
_ rated by broad red interspaces ; head black to the posterior border 
of the parietals, 
Total length 400 millim. ; tail 33. 
Arizona, Sonora, and North-western Mexico, 
a. Q (V. 220; C. 29). —-? Haslar Collection. 
4, Elaps gravenhorstii. 
ae gravenhorstii, Jan, Rev. § Mag. Zool. 1858, p.523, and Prodr. 
pl. A-(1859). : 
Eye a little shorter than its distance from the mouth. Frontal 
longer than broad ; parietals as long as their distance from the 
internasals ; one pre- and two postoculars; temporals 1+1; pos- 
terior nasal separated from the preocular, which is very small; 
seven upper labials, third in contact with the prefrontal, fourth and 
fifth entering the eye. Scales in 15 rows. Ventrals 191; anal 
divided; subcaudals 23. Body with black annuli disposed in 
threes, the median broadest; seven sets of annuli; head black, 
with a yellow transverse band behind the eyes covering the anterior 
two-thirds of the parietals and the posterior extremity of the 
frontal. 
Total length 550 millim. ; tail 50. 
Brazil. 
