136 COLUBEID^. 



eye; five lower labials in contact ■with the anterior chin-shields, 

 which are as long as or a little longer than the posterior. Scales 

 in 19 rows. Ventrals obtusely angulatai ^terally, 169-197 ; anal 

 divided ; subcaudals 60-78. Length of tan 4 to 5 times in the total 

 length. Uniform green above, upper lip and lower parts uniform 

 yellowish white ; a black nuchal band may be present in the young. 



Total length 550 millim. ; tail 110. 



Brazil, Argentine Eepublio. 



«. 2 (V.175; 0.60). S.America. I ™ > 



6. $(V. 178; 0.66). Pernambuco. j Uypes-; 



c, Yg. (V. 169; 0. 73). Pernambuco. W. A. Forbes, Esq. 



[P.]. 

 rf.Yg.(V. 182; 0.78). Eio Janeiro, D. Wilson Barker, 



Esq. [P.]. 

 e. $ (V. 197 ; 0. ?). Salta, Buenos Ayres. Herbert Druce, Esq. 



[P.]. 



/Ut' 7': , - '' ' I • 11. LiopMs typWus. 



OolubertypMus,Xmre. S. N. i. p. 378 (1766) ; Daud. Eept. vii.p. 135 



(1803). 

 Natrix forsteri, Wagl. in Spix, Serp. Bras. p. 16, pi. iv. fig. 1 (1824). 

 Xenodon typhlus, ScMeg. Phys. Serp. ii. p. 94 (1837) ; Dum. 8f Bibr. 



vii. p. 760 (1854) ; Gunth. Cat. p. 57 (1858). 

 Liophis typhlus, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 300, and 



Icon, Gin. 18, pi. iv. fig. 2 (1866) ; Boettg. Zeitschr. f. ges. 



Naturw. Iviii. 1885, p. 229. 

 Opheomorphus typhlus. Cope, Proc. Ac. Philad. 1868, p. 102. 

 Xenodon isolepis, Cm)e, Proc. Am. Philos, Soc. xi. 1869, p. 155. 

 Opheomorphus brachyurua. Cope, Proo. Am. Philos. Soc. xxiv. 1887, 



p. 57. 



Eye rather large ; snout short. Rostral broader than deep, visible 

 from above ; internasals as^long as broad or slightly broader than 

 long, as long as or shorter than the prsefrontals ; frontal once and 

 a half as long as broad, as long as or a little longer than its 

 distance from the end of the snout, as long as the parietals ; 

 loreal deeper than long ; one pree- 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 19 rows. Ventrals obtusely 

 angulate laterally, 136-171 ; anal divided ; subcaudals 46-57. 

 Length of tail 4| to 6 times in the total length. Olive or green 

 above, uniform or with small black spots, or some or all of the scales 

 with darker or lighter edges ; young with a A-shaped black nuchal 

 band; upper lip and lower parts white; belly usually uniform, 

 rarely with very small dark spots. 



Total length 650 millim. ; tail 120. 



South America east of the Andes. 



a. S (V. 144; 0.55). British Guiana. 



6. ? (V. 147; 0.54). Berbice. Ladv Essex [P.]. 



c. Hgi'. (V. 148; 0.55). Vryheids Lust, Deme- Rev. W. Turner [0.]. 



