l<i. UYLOKIIINA. 251 



Vomerine teeth in two oblique oval groups on a level with the 

 hinder edge of the choanfo. Snout subacuminate, as long as the 

 greatest orbital diameter ; interorbital space half the width of the 

 upper eyelid : tympanum two thirds the diameter of the ej-e. First 

 finger much longer than second ; toes moderate, fringed, with a 

 rudiment of web : subarticular tubercles well developed ; a small 

 oval inner, and an indistinct outer metatarsal tubercle. The hind 

 limb being carried forwards along the body, the tibio-tarsal articu- 

 lation reaches beyond the tip of the snout. Upper surfaces covered 

 with flat warts ; lower surfaces smooth. Greyish olive above, 

 marbled with darker ; hind limbs cross-barred : groin and hinder 

 side of thighs marbled with black. Male with a subgular vocal sac, 

 and blackish rugosities on the inner side of the first, second, and 

 third fingers. 



Uruguay. 



a. (S , Montevideo. 



16. HYLOEHINA. 



Hvlorhiua, Bell, Zool. Beagle, Rept. p. 44 ; Giudh, Cat, p. 23 ; Cope, 

 'Kat. Hist. Bev. 1865, p. 113, and Jovrn. Ac. Philacl. (2) vi. 1866, 

 p. 95. 



Pupil erect. Tongue circular, free and entire behind. Vomerine 

 teeth. Tympanum distinct. Fingers and toes very long, the former . 

 free, the latter webbed at the base ; tips of fingers and toes not 

 dilated. Outer metatarsals united. Omosternum cartilaginoiis ; 

 eternum with a broad bony style. Terminal phalanges simple. 



ChiU. 



1. Hylorhina silvatica. 



Hylorhina silvatica, Giinth. Cat. p. 23. 

 Hylorhina sylvatica, Bell, I. c. pi. 19, f. 1 ; E^pada, Vug. Pacif., 



Vertehr. p. 10. 

 Cystignathus seneus, Guichen. I. c. pi. 5. 



Vomerine teeth in a straight series on a level with the hinder 

 edge of the choange. Snout short, rounded ; interorbital space as 

 broad as the upper eyelid ; tympanum very small. Fingers very 

 long, first shorter than second ; toes very long, webbed at the base 

 and slightly fringed ; subarticular tubercles not much developed ; a 

 small, oval, inner metatarsal tubercle. The hind limb being carried 

 forwards along the body, the tibio-tarsal articulation reaches the 

 tip of the snout. Skin with small flat warts above, smooth beneath. 

 Uniform brown (discoloured). 



Chili. 



a. S> . Chiloe. C. Darwin, E^q. [r.]. (.Type.) 



