16, HYLORHINA. 951 
Vomerine teeth in two oblique oval groups on a level with the 
hinder edge of the choane. 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 eye. 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 hody, 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 3, Montevideo. 
16. HYLORHINA. 
Hylorhina, Bell, Zool. Beagle, Rept. p. 44; Giinth, Cat. p. 23; Cope, 
Nat. Hist, Rev. 1865, p. 113, and Journ, Ac. Philad, (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 cartilaginous ; 
sternum with a broad bony style. ‘Terminal phalanges simple. 
Chili, 
1, Hylorhina silvatica. 
Hylorhina silvatica, Giinth. Cat. p. 25. 
Hylorhina sylvatica, Bell, /. c. pl. 19. f£.1; Espada, Viaj. Pactf., 
Vertebr. p. 10. 
Cystignathus eeneus, Guichen. 1. c. pl. 5. 
Vomerine teeth in a straight series on a level with the hinder 
edge of the choane. Snout short, rounded ; interorbital space as 
broad as the upper eyelid; tympanum very small. Tingers 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. 
ae. Chiloe. C, Darwin, Esq. [P.]. (Type.) 
