2. CERATOHYLA, 453 
2. CERATOHYLA. 
Hemiphractus, sp., Peters, Mon. Berl. Ac. 1862, p. 145. 
Cerathyla, Espada, Jorn. Se. Lisb. iii. p. 63. 
Pupil horizontal. Tongue entire, slightly free behind. Teeth on the 
vomers and palatine bones. Head large, helmet-shaped ; orbit com- 
pletely enclosed. ‘'ympanum distinct. Fingers with an indistinct 
rudiment of web; toes webbed at the base; tips of fingers and toes 
dilated into regular disks. Outer metatarsals united. Omosternum 
rudimentary ; sternum a cartilaginous plate. Terminal phalanges 
claw-like. 
Ecuador. 
Synopsis of the Species. 
I. Upper eyelid produced into a horn-like 
dermal appendage; snout with a 
long dermal appendage .......... 1. proboscidea, p. 453. 
II. Upper eyelid rounded, tubercular ; snout with a short dermal 
appendage. 
1. Tibio-tarsal articulation not reaching beyond the tip of the 
snout. 
Tongue circular; the distance from the ex- 
tremity of one of the lateral processes of 
the helmet to the other equals its distance 
from: ‘thestip of the snout 0.0). 0.5 6 ast. 2. bubalus, p. 453. 
Tongue longer than broad; hinder edge of 
the helmet strongly curved .......... 3. fasciata, p. 454. 
Tongue broader than long; hinder edge of 
the helmet slightly curved............ 4. palmarum, p. 455. 
2. Tibio-tarsal articulation reaching 
beyond the tip of the snout .... 5. braconmeri, p. 455. 
1. Ceratohyla proboscidea. 
Cerathyla proboscidea, Espada, Jorn. Sc. Lisb. iii. p. 64, and Viay. 
Pacif., Vertebr. pl. 5. f. 2. 
Tongue longer than broad. Snout with along, compressed, bifid, 
dermal appendage; upper eyelid produced into a horn-hke dermal 
appendage. Hinder edge of the helmet slightly curved. First 
finger longer than second; toes one-third webbed. Heel with a 
triangular dermal appendage. 
Keuador. 
2. Ceratohyla bubalus. 
Cerathyla bubalus, Espada, Jorn. Se. Lisb, iii, p. 64, and Viaj. 
Pacif., Vertebr, pl. 5. £. 5. 
Tongue circular. Anterior vomerine teeth longer than the others. 
Snout with a very short pointed dermal appendage; upper eyelid 
