130, COLUBRID. 
3. Liophis teniurus. 
Liophis teniurus, Tschudi, Faun. Per., Herp. p. 51, pl. v. (1845); 
Jan, Arch. Zool. An, Phys. ii. 1868, p. 296, and Icon. Gén. 18, pl. iii. 
fig. 1 (1866). 
Aporophis teniurus, Cope, Proc. Amer. Philos. Soc. xviii. 1879, p. 277. 
Eye moderate. Rostral broader than deep, scarcely visible from 
above ; internasals as long as broad, as long as the prefrontals ; 
frontal once and a half or once and two thirds as long as broad, a 
little longer than its distance from the end of the snout, a little 
shorter than the parietals ; loreal deeper than long; one pre- and 
two postoculars ; temporals 1+2; eight upper labials, fourth and 
fifth entering the eye; five lower labials in contact with the anterior 
chin-shields, which are as long as the posterior. Scales in 17 
or 19 rows. Ventrals 148-185; anal divided; subcaudals 53-57. 
Length of tail 43 to 5 times in the total length. Brown above, 
anteriorly with black transverse spots or cross-bands, posteriorly 
with two or four black longitudinal bands ; labials whitish, a black 
lateral streak passing through the eye; a black A-shaped nuchal 
collar ; belly white with black spots, some of which extend over a 
whole ventral shield ; lower surface of tail black, with or without a 
light streak along each side. 
Total length 630 millim.; tail 125. 
Peru and Ecuador. 
a. 2 (Sce.17; V.164; C.53). Muna, Peru. Mr. W. Davis [C.]; 
Messrs. Veitch [ P. ]. 
b. 3 (Se.17; V. 148; C.57). Moyobamba, Peru. Mr. A. H. Roff[C.]. 
ec. 2 (Sc. 19; V.157; C.55). Guayaquil. H. B. James, Esq. 
[P.]. 
4, Liophis albiventris. 
Liophis regine, vars. albiventris e¢ quadrilineata, Jan, Arch. Zool. 
Anat. Phys. ii. 1863, p. 294, and Icon. Gén. 16, pl. vi. figs. 2 & 3 
(1866) ; Bocourt, Miss. Sc. Mex., Rept. p. 658, pl. xli. fig. 4 (1886). 
Opheomorphus alticolus, Cope, Proc. Ac. Philad. 1868, p. 102. 
Liophis alticolus, Bouleng. Ann. § Mag. N. H. (5) ix. 1882, p. 460. 
Eye moderate; snout short. Rostral nearly twice as broad as 
deep, just visible from above ; internasals broader than long, shorter 
than the preefrontals; frontal once and a half as long as broad, as 
long as or slightly longer than its distance from the end of the 
snout, shorter than the parietals; loreal deeper than long, some- 
times very small or absent; one pre- and one or two postoculars ; 
temporals 14+2; eight upper labials, fourth and fifth entering the 
eye; four or five lower labials in contact with the anterior chin- 
shields, which are as long as the posterior. Scales in 17 rows. 
Ventrals 138-158 ; anal divided; subcaudals 50-66. Length of 
tail 4 to 53 times in the total length. Olive or greenish above, 
uniform or spotted with black ; a dark streak on each side of the 
head, passing through the eye; labials white ; young with a pale 
black-edged nuchal collar; a more or less distinct black streak, 
