136 



COLUBRID^. 



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 angulat^. e^erally, 169-197 ; anal 

 divided ; subcandals 60-78. Length of tau 4 to 5 times in the total 

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

 yellowish white : a black nuchal Ijand may be present in the young. 



Total length 550 millim. ; tail 110. 



Brazil, Argentine Hepublic. 



a. 2 (V. 175 ; C. 60). S. America. I .rp ^ 



i. 2(Y. 178; C. G6). Pernambuco. \ Ujpes.; 



c, Yg. (V. 109; C. 73). Pernambuco. W. A. Forbes, Esq. 



[P.]. 

 ^. Yg. (V. 182; 0. 78). Pao Janeiro. D. Wilson Earlier, 



Esq. [P.]. 

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



[P.]. 



11. Liophis typhlus. 



Coluber typhlus, Linn. S. N. i. p. 378 (1766) ; Baud. Rept. vii. p. 135 



(1803). 

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

 Xenodon typhlus, Schleff. Phys. Serp. ii. p. 94 (1837) ; Dum. ^ Bibr. 



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

 Liophis tj'phlus, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 300, and 



Icon. Gen. 18, pi. iv. fig. 2 (1866) ; Boetty. Zeitschr. f. yes. 



Naturw. Iviii. 1885, p. 229. 

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

 Xenodon isolepis, Cope, Proc. Am. Philos. Sac. xi. 1869, p. 155. 

 Opheoniorphus brachyurus, Cope, Proc. Am. Philos. iSoc. 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 prasfrontals; 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 proe- 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. Yentrals obtusely 

 angulate laterally, 136-171 ; anal divided ; subcandals 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 jiarts white ; belly usually uniform, 

 rarely with very small dark spots. 



Total length 650 millim. ; tail 120. 



South America east of the Andes. 



a. c5 (V. 144; C. 55). British Guiana. 



6. 5 (V. 147; C. 54). Berbice. Ladv Essex [P.]. 



c. HgT. (V. 148; C. 55). Vrybeids Lust, Deme- Rev. W. Turner [C.]. 

 rara. 



