136 COLUBRID. 
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; C, 135). Catamarca. Lord Dormer [P.]. 
12. Philodryas baroni. 
na by baroni, Berg, An. Mus. Buen. Ayres, iv. 1895, p. 189, 
g. 
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 preocular, in 
contact with or narrowly separated from the frontal; two post- 
oculars ; temporals 1+ 2 or 242; 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 182-135. Green 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. § Bibr, vii. p. 1127 (1854).* 
Rostral well visible from above; internasals a little smaller than 
the prefrontals ; frontal much elongate ; two loreals; one pra- and 
three postoculars ; temporals 14+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 imen, I am informed, is not to be found in the Paris Museum. 
On p. 754 Duméril & Bibron identify the snake with Boie’s Xenodon inornatus, 
which does not at all agree with their desoription. 
