138 RANIDE. 
united. Omosternum with a bony style; sternum membranous, 
rudimentary. ‘Terminal phalanges T-shaped. 
Keuador. 
1. Hylixalus bocagii. 
Hyloxalus bocagei, Bee: Jorn. Se. Lisb. iii. 1870, p. 59, and Viaj. 
‘Pacif., Vertebr. pl. 3. £. 2 
Snout depressed, projecting, truncate; canthus rostralis angular ; 
loreal region nearly vertical ; nostril nearer the tip of the snout 
than the eye; interorbital space as broad as the upper eyelid; 
tympanum half the width of the eye. First finger not extending 
beyond second ; toes nearly entirely webbed ; subarticular tubercles 
small; two metatarsal tubercles. The hind limb being carried 
forwards along the body, the tibio-tarsal articulation reaches in front 
of the eye. Skin quite smooth; a fold from the eye to the shoulder. 
Dark olive-brown above ; lower surfaces white, immaculate or dotted 
with brown. Male with a subgular vocal sac. 
Ecuador. ? 
a-b. 3. Sarayacu. Mr. Buckley [C.]. 
eT Canelos. Mr. Buckley [C. ]. 
2. Hylixalus fuliginosus. 
Hyloxalus fuliginosus, Hspada, Jorn. Sc. Lis. iii. 1870, p. 59, and 
Viaj. Pacif., “Vertebr. pla. ta: 
Differs from the preceding in its half-webbed toes and granular 
upper surfaces. Brown above, white beneath, except the throat. 
Keuador. 
16, PROSTHERAPIS. 
Prostherapis, Cope, Proc. Ac. Philad, 1868, p. 137. 
Pupil horizontal. Tongue elliptic, entire, free behind. Vomerine 
teeth none. Tympanum distinct or indistinct. Fingers free; toes 
nearly free, dilated into distinct disks, each of which exhibits two 
leathery dermal scales on the upper side, separated by a fissure. 
Outer metatarsals united. Omosternum with a bony style ; sternum 
membranous, rudimentary. Terminal phalanges T-shaped. 
S. America. 
1. Prostherapis inguinalis. 
Prostherapis inguinalis, Cope, 1. e. 
* Snout depressed, with angular canthus rostralis, truncate from 
above ; loreal region nearly vertical ; nostril nearer the tip of the 
snout than the eye; interorbital space broader than the upper eye- 
lid; tympanum concealed. First finger longer than second ; toes 
with a slight rudiment of web ; subarticular tubercles small; two 
Stain 
—— 
