_Linguæ subcordiformi, posticè emarginatâ. Dentibus palatinis in
fasciculis binis ovalilibus, subcontiguis. Oculis prominentibus.
Capite tam lato quam longo. Gulâ bi-plicatâ; suprà levitèr—infrà
multùm granulosâ. Dorso fusco-griseo, punctis, maculis et fasciis
lateralibus nigris_.
_Hyla Vauterii._ Bibr. MS.
DESCRIPTION.—Head short, thick, the sides anteriorly converging
towards a nearly right angle, the muzzle rounded. Tongue nearly
cordate, posteriorly emarginate, free for about one-fourth of its
length. Palatine teeth in two oval fasciculi, placed nearly
transversely between the posterior nares, and almost contiguous.
Eyes prominent. Tympanum circular, rather large. Body plump, the
sides nearly parallel for two-thirds of its length. The skin
nearly smooth, but covered with very small inconspicuous
granulations over the whole upper surface, which are rather more
obvious on the head. The throat, the belly, and the inferior
surface of the thighs covered with large prominent granulations.
Beneath the lower jaw the granulations are smaller, and the under
surface of the limbs excepting the thighs is quite smooth. A small
fold of skin over the tympanum passes backwards to the arm; and
beneath the throat there are two considerable transverse folds,
one of which is before and the other immediately behind the arms.
Fore feet, with the palms covered with small granular tubercles,
and a tubercle under the joints of the fingers, which are
connected to about one-third of their length. Hinder legs longer
than the head and body by the whole foot and tarsus. The soles
tuberculated. Toes rather short, palmate to half their length.
COLOUR.—The whole of the upper parts are greyish brown, with a tinge
of red, and minutely punctured with black. There are scattered
spots of the latter colour on the back and sides, assuming
somewhat of a longitudinal arrangement, and a broad blackish grey
fascia extends from the eye backwards to the arm, including the
tympanum, and this fascia is bordered beneath by a white line. The
thighs and legs are barred and spotted with black. The under parts
are yellowish white, excepting under the lower jaw, where it is
finely mottled with black and white.
I received the name of this species from Mons. Bibron, who had, I
believe, applied it to specimens in the Paris Museum. It was taken by
Mr. Darwin at Maldonado, lurking under a stone, and at Rio Janeiro on
palm-trees.
DIMENSIONS.
Inches. Lines.
Length of the head and body 1 6
of anterior extremities 0 9
of posterior extremities 2 5