142 COLUBEID^. 



18. Liophis melanostigma. 



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



(1824). 

 Dromicus pleii (non D. <§• B.), Giinth. Cat. p. 128 (1858). 

 melanostigma, Jan, Icon. Gen. 24, pi. v. fig. 3 (1867) ; Boulenff. 



Ann. Sf Mag. N. H. (5) xviii. 1886, p. 433. 

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

 Aporophis cyanoplem-us^ Cope, Proc. Am. PhUos. Soo. xxii. 1885, 



p. 191. 



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

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

 than the prefrontals ; 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 prse- 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 millim. ; tail 250. 



Brazil. 



a. 6 (V. 160 ; C. 107). Eio Janeiro. A. Fry, Esq. [P.]. 



h. S ("V. 163; C. 100). Rio Janeiro. Dr. Cunningham [P.]. 



c. $ (V. 152 ; C. 98). Rio Grande do Sul. Dr. H. v. Ihering [C.]. 



19. Liophis callilaemus. (Plate VI. fig. 3.) 



Natrix callilfema, Gosse, Nat. Sqj. Jamaica, p. 384 (1851). 

 Dromicus callilsema, Giinth. Cat. p. 131 (1858), and Ann. 4* Maff. 



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

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



Eye moderate ; snout slightly prominent. Rostral broader than 

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

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

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

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

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

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

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

 or a little shorter than tho posterior. Scales in 19 rows. Yeutrals 

 13U-134; anal divided; subcaudals 70-110. Length of tail 2| 

 to 2)\ times in the total length. Brown above, with darker dots ; 



