130 COLTJBBID^. 



3. Liophis tseniunis. 



Liophis tEeniurus, Tschudi, Faun. Per., Herp. p. 51, pi. v. (1845) ; 



Jan, Arch. Zool. An. Phys. ii. 1868, p. 296, and Icon. G6n. 18, pi. iii. 



fig. 1 (1866). 

 Aporophis tseniurus, Cope, Froc. Amer. Philos. Soc. xviii. 1879, p. 277. 



Eye moderate. Eostral broader than deep, scarcely visible from 

 above ; internasals as long as broad, as long as the prsefrontals ; 

 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 prse- 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 4| 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 /^-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. 5 (Sc. 17 ; V. 164 ; 0. 53). Mufia, Peru. Mr. W. Davis [C] ; 



Messrs.VeitchrP.l. 



b. cT (Sc. 17 ; V. 148 ; C. 67^. Moyobamha, Peru. Mr. A. H. Eoff PC.]- 



c. ? (Sc. 19 ; V. 157 ; 0. 55). Guayaquil. H. B. James, Esq. 



4. Liophis albiventris. 



Liophis Teginse, vars. albiventris et quadiilineata, Jan, Arch. Zool. 

 Anat. Phys. ii. 1863, p. 294, and Icon. Q&n. 16, pi. vi. figs. 2 & 8 

 (1866) ; Bocourt, Miss. Sc. Mex., Rept. p. 633, pi. xli. fig. 4 (1886). 



Opheomorphua alticolus, Cope, Proc. Ac. Philad. 1868, p. 102. 



Liophis alticolus, Bouhng. 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 prtefrontals ; frontnl 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 prse- and one or two postoculars ; 

 temporals 1 + 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. 

 Yentrals 138-158 ; anal divided ; subcaudals 50-66. Length ol 

 tail 4 to 5^ 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. 



