130 COLTJBEIDJi;, 



3. Liophis tseniurus, 



Liophis tfeniuriis, Tschudi, Faim. Per., Herp. p. 61, pi. v. (1845'! ; 



Jan, Arch. Zool. An. Phys. ii. 1803, p. 296, and Icon. Gen. 18, pi. iii. 



%. 1(1866). ^ ^ 



Aporophis tseniurus, Cope, Proc. 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 prie- and 

 two postoculars ; temporals 1+2; eight upper labials, fourth and 

 fifth entering the eye ; five lower labials in contact with the anterior 

 cliin-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. 2 (Sc. 17 ; V. 164; C. 53). Muna, Teru. Mr. W. Davis [C] ; 



Messrs. Veitch [P.]. 

 h. c7 (Sc. 17 ; V. 148 ; C. 57). Moyobamba, Peru. Mr. A. H. Eoff [C.]. 

 c. 5 (Sc. 19 ; V. 157 ; C. 55). Guayaquil. H. B. James, Esq. 



[P.]. 



4. Liophis albiventris. 



Liophis reo-inae, vars. albiventris et quadrilineata, Jan, Arch. Zool. 

 Anat. Phys. ii. 1863, p. 294, ayid Icon. Gen. 16, pi. vi. figs. 2 & 3 

 (1866) ; Bocourt, Miss. Sc. Me.r.,Rept. p. 633, pi. 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. Kostral nearly twice as broad as 

 deep, just visible from above ; internasals broader than long, shorter 

 than the prefrontals; 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 pre- 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. 

 Ventrals 138-158; anal divided; subcaudals 50-66. Length of 

 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 ; 3foung with a pale 

 black-edged nuchal collar; a more or less distinct black streak, 



