44 
ZOOLOGY OF THE VOYAGE OF THE BEAGLE. 
above, with a lighter band across the head between the eyes, and there are traces 
of a longitudinal line down the back ; the limbs are banded with brown and 
brownish yellow ; the under parts are pale, dotted with brown. 
DIMENSIONS. 
In. Lin. 
Length of the head 0 5 
of the body 1 0 
of the anterior extremities 1 0 
of the posterior extremities 2 1 
Found by Mr. Darwin at Valdivia. 
Genus — HYLORINA. Bell. 
Caput suhrotundum planum. Linguse magna circularis, postich libera. Dentes 
palatini in lined transversd, parum interruptd, dispositi. Tympanum distinctum. 
Digiti subdepressi, ad apiceni obtusi, hand expansi ; anteriores ferh liberi ; poste- 
riores ad basin membrand connexi, et marginati. Femora multd glandulosa. 
A genus nearly allied to Hylodes, from which, however, it may at once be 
distinguished by the palmure of the hinder toes — which in Hylodes are entirely 
free — and by the absence of even the slightest dilatation of their extremities ; 
offering another example of an osculant form between the Hylid^e and the 
Ranid^. 
Hylorina sylvatica. Mild. 
Plate XIX. — Fig. 1. 
Description. — Head broad, rounded, the anterior margin, from the nose to the lip, nearly perpen- 
dicular. Eyes large and prominent. Tympanum distinct, small, round. Tongue very large, 
circular, and entire, the posterior half free. Palatine teeth placed in a transverse line 
between the posterior nostrils, scarcely interrupted in the middle. Skin of the back rugose. 
Anterior feet with the toes long, rather slender, united at the base only by a very short mem- 
brane, with round subarticular tubercles, the apex rounded, but not presenting the slightest 
expansion. Hinder toes similarly formed, but with the connecting membrane more con- 
spicuous, and extending along the sides of the toes nearly to the extremity. Thighs covered 
on the under and posterior surface with rather large and distinct glands. 
