Mr. G. A. Boulenger on new Snakes. 353 
behind the labials to the outer border of the parietal white ; 
lower parts white, the shields edged with dark olive. 
Total length 520 millim. ; tail 43. 
A single specimen from Efulen, 8. Cameroon, collected by 
Mr. G. L. Bates. 
Homalocranium alticola. 
Hye about two fifths the length of the snout. Rostral a 
little broader than deep, visible from above ; internasals 
a little shorter than the prefrontals; frontal hexagonal, 
obtuse-angled in front, right-angled or acute-angled behind, 
twice as broad as the supraocular, a little longer than broad, 
longer than its distance from the end of the snout, shorter 
than the parietals ; nostril between two nasals, the second of 
which is in contact with the preocular; two postoculars ; 
temporals 1+1; seven upper labials, third and fourth 
entering the eye; symphysial in contact with the anterior 
chin-shields; four lower labials in contact with the an- 
terior chin-shields, which are longer than the posterior. 
Scales in 15 rows. Ventrals 147-149; anal divided; sub-_ 
eaudals 55-64. Dark brown above, vertebral and lateral 
seales lighter in the centre; a yellow, black-edged cross- 
bar on the occiput; upper lip and end of snout yellow; a 
black spot below the eye and a triangular black blotch on 
the temple ; lower parts yellowish white. 
Total length 330 millim.; tail 75. 
Three specimens (males and young) from Santa Rita, 
north of Medellin, Colombia, altitude 9000 feet, collected 
by Mr. A. EH. Pratt. 
Apostolepis Pymi. 
Snout very short, broadly rounded; eye minute. Rostral 
nearly as deep as broad, just visible trom above; frontal 
once and two thirds as long as broad, as long as its distance 
from the end of the snout, half as long as the parietals, which 
are nearly twice as long as broad; nasal in contact with the 
preocular; a single postocular; six upper labials, second and 
third entering the eye, fourth and fifth in contact with the 
arietal ; four lower labials in contact with the anterior chin- 
shields, which are a little longer than the posterior ; first 
lower labial in contact with its fellow behind the symphysial. 
Scales in 15 rows. Ventrals 209; anal divided; subcau- 
dals 35. Reddish above, with three dark brown lines; 
upper surface of head and nape brown; a yellow spot below 
Ann. & Mag. N. Hist. Ser. 7. Vol. xii. 23 
