71. LEPTOPHIS. 118 
prefrontal in contact with labials; one preocular, in contact with 
or narrowly separated from the frontal ; temporals 1+2; eight or 
nine upper labials, fourth and fifth or fifth and sixth entering the 
eye; five or six lower labials in contact with the anterior chin- 
shields, which are shorter than the posterior. Scales in 15 rows, 
all except the outer row more or less distinctly keeled; the keel 
on the middle vertebral series more feeble, or obsolete ; scales on 
neck and tail smooth. Ventrals distinctly angulate laterally, 149- 
161; anal divided ; subcaudals 106-163. Green above, head-shields 
and scales broadly edged with black; keels black; ventrals and 
subcaudals yellowish or pale green, uniform or edged with dark 
green, 
Total length 1010 millim.; tail 390. 
Upper Amazons. 
a. 9 (V. 158; C. 115). Upper Amazons. Mr. E. Bartlett [C.]. 
(Type.) 
b-c. ¢ (V.155; C.142) & Pebas. 
Q (V. 161; C. 163). 
d-e. 9 (V. 158, 149; C. Peruvian Amazons. 
153, 150). 
Fg. & (YM. 155 ; C. 117) Moyobamba, N.E. Mr, A. H. Roff[C.}. 
@ (V. 153 CO 144), Peru. : 
(V.dob; C. 106). Sarayacu,N.E.Peru, Mr. W. Davis [C.]; 
& 
h. 2 
Messrs. Veitch | P. |. 
11. Leptophis Jiocercus. 
Coluber ahetulla, part., Gmel. S. N. i. p. 1116 (178 88); Bonnat. 
Encycl. Méth., Ophiol. p. 28 (1789) ; Lacép. Serp. p. 223, pl. xi. 
fig. 1 (1789). 
boiga, part., Daud. Rept. vii. p. 63, pl. Ixxxiv. (1803). 
liocercus, W ted, Abbild, (1824), and Beitr. Nat. Bras. i. p. 265 
(1825). 
richardii, Bory de St. Vine. Ann. Sc. Nat. i. 1824, p. 408, 
pl. xxiv. 
Aheetula liocercus, Gray, Griff. A. K. ix. Syn. p. 93 a 
richardi, Gray, ic. 
Leptophis ahetulla, part., Bell, Zool. Journ. ii. 1825, p. “328, 
Dendrophis nine part., Schles yg. Phys. Serp. ii. p. 224, pl. ix. 
figs. | & 2 (1887 
Leptophis ewe part., Dum. § Bibr. vii. p. 533 (1845). 
Aheetulla liocercus, part., Giinth. Cat. p. 153 (1858). 
liocereus, Giinth. Proc. Zool, Soc, 1859, p. 418. 
Thrasops ahztulla, Cope, Proc. Ac. Philad. 1860, p. 557. 
—— marginatus, Cope, Proc. Ac. Philad. 1862, p. 349. 
Ahzetulla_ aheetulla, Peters, Mon. Berl. Ac. 1873, p- 607. 
Leptophis liocercus, Jan, Icon. Gén. 49, pl. vi. fig. 1 (1879). 
Rostral broader than deep, just visible from above ; internasals as 
long as or shorter than the preefrontals; frontal once and a half to 
twice as long as broad, as long as its distance from the rostral or 
the end of the snout, as long as or a little shorter than the parietals ; 
nasal elongate, entire or divided; no loreal; prefrontal in contact 
VOL. II. I 
