216 COLUBRID. 
the prefrontals ; frontal hexagonal, obtuse-angled in front, acute- 
behind, once and one third to once and a half as long as 
broad, longer than its distance from the end of the snout, shorter 
than the parietals; nostril between two nasals (which may be 
fused), the posterior of which is in contact with or more or less 
widely separated from the preocular ; two postoculars; temporals 
1+1,; seven upper labials, third and fourth entering the eye ; first 
lower labial in contact with its fellow behind the symphysial; four 
lower labials in contact with the anterior chin-shields, which are 
longer than the posterior. Scales in 15 rows. Ventrals 133-171; 
anal divided; subcaudals 46-71. Red or pale brown above, with 
or without three or five more or less dark longitudinal lines; head 
and nape dark brown or black, with the sides of the snout and the 
lip behind the eye yellow; occiput with two more or less distinct 
yellow spots or a yellow cross-bar; lower parts uniform yellowish 
white. 
Total length 500 millim. ; tail 100. 
| and Tropical South America. 
ye AF ie C. 52). ipa Costa Rica. 
a (V. C. 68). Tobago. if J. =e a 
<9 (V. 158; at W. Indies. Od. 1 Beta PP. 
d. 3 (V. 142 : C. 58). Berbice. 
e-9, h. 3b (V. 137, 140; Para, 
C. 55, 58), 2 (V. 136; 
Oe). yg. (V. 142; 
é. 2 (V. 145; C.?). Pernambuco. W. A. Forbes, Esq. 
[P.]. (Type of var. 
pernambucense. 
k. 2 (V. 144; C. 46). Asuncion, Paraguay. Dr. J. Bohls fo: , 
1. d (V. 185; C.?). Palmeira, Parana, Dr. 8. F. Gril 13 
Pe G. Doria 
BY 136; C. 47). Charobamba, Bolivia. 
n. no (V. 139; O. 9) Mo dopa: N.E. Mr. A. H. Roff[C.]. 
o. Hgr. (V. 133; C. 48). Bears; N.E. Peru. Mr. W. Davis [C.]; 
Messrs. Veitch{ P. } 
.§ (V. 146, 149; O. Quito 
P). 
i dy d (V.149; Or, W. Ecuador. ae ee 
& Q (V. 154, 150; ©. 
re Types of 
or var. Py 
u, ow 5 Aah 0. 58). 8. America. ee Laforest, for 
». 2 (V. 158; CO. 52). Mexico (?). M. Sallé (C.] 
Type of £. snizinaie ) 
The latter specimen agrees so completely with Ecuador specimens, 
that I cannot refer it to a distinct species although the nasal shield 
is single-—The specimen is probably not from M. Sallé’s Mexican 
Collection. 
