142 COLTJBBID^. 



18. LiopMs melanostigma. 



Natrix melanostigma, Wagl. in Spix, Serp. Bras. p. 17, pi iv. fig. 2 



(1824). 

 Dromicus pleii {non D. Sf JB.), Giinth. Cat. p. 128 (1858). 

 melanostigma, Jan, Icon. G6i. 24, pi. v. fig. 3 (1867) ; Botdenff. 



Ann. ^ Mag. N. S. (5) xviii. 1886, p. 433. 

 Liophis reginfe, part., Steind. Sitzh. Ak. Wien, Iv. 1867, p. 268. 

 Aporophis cyanoplem-us^ Cope, Proc. Am. Philos. Soc. xxii. 1885^ 



p. 191. 



Eye large ; snout moderate. Eostral broader than deep, just 

 visible from above ; internasals a little broader than long, shorter 

 than the praefrontals ; frontal about once and two thirds as long as 

 broad, as long as its distance from the end of the snout or a little 

 longer, as long as the parietals ; loreal a little deeper than long ; 

 one prsB- and two postoculars; temporals 1 + 2; eight (rarely nine) 

 upper labials, third, fourth, and fifth (or fourth, fifth, and sixth) 

 entering the eye ; four or five lower labials in contact with the 

 anterior chin-shields, which are much shorter than the posterior. 

 Scales in 17 rows. Ventrals 150-160 ; anal divided ; subcaudals 

 90-107. Tail about one third of the total length. Olive above ; 

 nape with two more or less distinct yellowish longitudinal bands ; 

 a lateral series of light and black dots on the fourth row of scales ; 

 sides and ends of ventrals plumbeous grey ; upper lip yellowish, 

 edged with black above ; ventrals yellowish, edged with grey or 

 black, and with a black dot or short streak on each side. 



Total length 770 miUim. ; tail 250. 



Brazil. 



a. S (V. 160; 0. 107). Eio Janeiro. A. Fry, Esq. [P.]. 



h. S (V. 153; 0. 100). Rio Janeiro. Dr. Cunningham [P.]. 



c. ? (V. 152 ; C. 98). Eio Grande do Sul. Dr. H. v. Ihering [0.]. 



19. LiopMs callilsemus. (Plate VI. fig. 3.) 



Natrix callilsema, Gosse, Nat. Soj. Jamaica, p. 384 (1851). 

 Dromicus callilsema, Giinth. Cat. p. 131 (1858), and Ann. Sf Mag. 



N. H. (3) xii. 1863, p. 357. 

 ? Alsophis funereus, Cope, Proc. Ac. Philad. 1862, p. 77. 



Eye moderate ; snout slightly prominent. Eostral broader than 

 deep, scarcely visible from above ; internasals as long as broad or a 

 little broader, shorter than the praefrontals ; frontal a little longer 

 than broad, nearly twice as broad as the supraocular, as long as its 

 distance from the end of the scout, shorter than the parietals ; 

 loreal small, square ; one prse- and two postoculars ; temporals 1 + 2 ; 

 seven upper labials, third and fourth entering the eye ; four lower 

 labials in contact with the anterior chin-shields, which are as long as 

 or a little shorter than the posterior. Scales in 19 rows. Ventrals 

 130-134; anal divided; subcaudals 70-110. Length of tail 2f 

 to 3^ times in the total length. Brown above, with darker dots ; 



