136 COLUBEIDiE. 



partly double pits, in 23 rows. Ventrals obtusely angulate laterally, 

 211 ; anal entire ; subcaudals 135. Young cream-colour above, 

 with three dark brown stripes, the outer extending to the end of 

 the snout, passing through the eyes ; rostral and labials white ; the 

 stripes may disappear in the adult ; lower parts whitish. 



Total length (young) 410 millim. ; tail 120. 



Mendoza, Catamarca. 



a. Yg. (V. 211 ; 0. 135). ' Catamarca. Lord Dormer [P.]. 



12. Phllodryas baroni. 

 Philodryas baroni, Berg, An. Mus. Buen. Ayres, iv. 1895, p. 189, 

 fig- 



Eye not one third the length of the snout, which is very promi- 

 nent and acutely pointed. Rostral deeper than broad, confined to 

 the lower surface of the snout, the upper surface being occupied by 

 two or more small shields in front of the internasals ; frontal once 

 and two thirds to once and three fourths as long as broad, longer 

 than the parietals; loreal thrice as long as deep ; one prseocular, in 

 contact with or narrowly separated from the frontal ; two post- 

 oculars ; temporals 1 -|- 2 or 2 -f 2 ; eight (exceptionally seven or nine) 

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

 contact with the anterior chin-shields, which are shorter than the 

 posterior. Scales smooth, with single pits, in 21 or 23 rows. Ven- 

 trals 224-231 ; anal entire ; subcaudals 132-136. Grreen or reddish 

 above, the scales and shields sometimes edged with black ; a black 

 line on each side of the head, passing through the eye ; upper lip 

 white ; a black vertebral line may be present on the anterior half 

 of the body ; greenish white beneath, the shields sometimes edged 

 with black. 



Total length 1430 millim. ; tail 410. 



Argentina (Tucuman and Chaco). 



13. Philodryas? inornatus. 

 Dryophylax inornatus, Dum. Sr Bibr. vii. p. 1127 (1854).* 



Rostral well visible from above ; internasals a little smaller than 

 the prsefrontals ; frontal much elongate ; two loreals ; one prae- and 

 three postoculars ; temporals l-|-2 ; eight upper labials. Scales in 

 18 rows, dorsals keeled. Ventrals 145; anal entire; subcaudals 

 134. Head yellowish brown above, spotted with black on the 

 sides ; body greyish olive, finely speckled with black ; a few black 

 blotches on the neck. 



Total length 935 millim. ; tail 355. 



Habitat unknown. 



. * The specimen, I am informed, ia not to be found in the Paris Museum. 

 On p. 754 Dum&il & Bibi-on identify the snake. with Boie's Xenodon inornatus, 

 which does not at all agree with their description. 



