164. PHIIODKYAS. 135 



Eye about half the length of the snout ; latter truncate, with 

 more or less concave lores. Eostral a little broader than deep, just 

 visible from above; internasals shorter than thepraefrontals; frontal 

 once and a half to once and two thirds as long as broad, as long as 

 or a little longer than its distance from the end of the snout, as 

 long as or a little shorter than the parietals ; loreal longer than 

 deep; one prseoculai (rarely divided), twice as broad above as 

 below, in contact with or narrowly separated from the frontal ; 

 three postoculars ; temporals small, scale-like, 2 ol- 3 + 3 or 4 ; eight 

 upper labials, fourth and fifth entering the eye ; five lower labials 

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

 or a little longer than the posterior. Scales with double apical 

 pits, in 21 rows, smooth or more or less distinctly keeled. Ventrals 

 rounded, 194r-244 ; anal entire or divided; subcaudals 88-106. 

 End of tail, in the young, somewhat swollen, with the scales raised. 

 Greyish or brown above, with large dark transverse angular spots 

 or bars, which may be bordered with whitish on the sides ; head 

 with interrupted longitudinal dark streaks and a dark lateral streak 

 passing through the eye ; lips spotted with blackish ; belly brownish 

 or greyish, with darker or lighter spots ; end of tail whitish in the 

 young. 



Total length 1010 millim. ; tail 200. 



Brazil. 



a. Hgr. (V. 205 ; A. 2 ; Porto Keal, Prov. M. Hardy du Drgneuf 

 C. 101). Rio Janeiro. [0.]. 



b. Yg. (V. 194 ; A. 2 ; Theresopolis, Prov. Dr. E. A. Gbldi [P.]. 

 C. 104). Rio Janeiro. 



e-d. Yg. (V. 230, 233 ; Bahia. Dr. 0. Wucherer [0.]. 



A. 1,2; 0.106,103). 

 e. ? (V. 226; A. 1 ; 0. Brazil. Zoological Society. 



98). 

 /. 2 (V. 213 ; A. 1 ; 0. Brazil. Liverpool Museum. 



88). 



11. Philodryas burmeisteri. 



Herpetodrvas trilineatus, Burmeister, Reise La Plata, i. p. 309 



(1861). — No proper description. 

 Dryophylax burmeisteri (Jan), Burm. op. c. ii. p. 529 (1861) ; Jartf 



Elenco, p. 84 (1863), and Icon. Gin. 49, pi. v. (1879). 

 Atomophis trilineatus, Cope, Proc. Amer. Philos. Sac. ixiv. 1887, 



p. 69. 



Eye about half as long as the snout, which is prominent, obliquely 

 truncate. Eostral as deep as broad, just visible from above ; inter- 

 nasals as long as the praefrontals ; frontal twice as long as broad, a 

 little longer than its distance from the end of the snout, as long as 

 the parietals ; loreal twice as long as deep, usually fused with the 

 . prsefrontal ; one prseocular, in contact with or narrowly separated 

 from the frontal; two postoculars; temporals 1 or 2-1-2 or 3; 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 or shorter than the posterior Scales smooth, with partly single. 



