428 HYLID. 
free, first shorter than second, fourth a little shorter than third ; 
toes free, first considerably longer than second; disks of fingers and 
toes much smaller than the tympanum; metatarsal tubercle indis- 
tinct. The hind limb being carried forwards along the body, the 
tibio-tarsal articulation marks the posterior corner of the eye. — 
Upper surfaces studded with bony deposits ; parotoids distinct, short, 
not extending beyond the vertical of the angle of the jaws; chest, 
belly, and inferior surface of thighs granulate. Blue-green above ; 
sides of limbs and body purple, minutely spotted with whitish; a 
narrow, white, black-edged line along the outer side of forearm and 
tarsus ; fingers light greenish ; lower surfaces brownish white, with 
a few white spots on the throat and chest. Male with a subgular 
vocal sac. From snout to vent 60 millim. 
Brazil. Named in honour of Professor Léon Vaillant. 
GIG 4 Santarem, H. A. Wickham, Esq. [P.]. 
8. Phyllomedusa tarsius. 
Pithecopus tarsius, Cope, Proc. Ac. Philad. 1868, p. 113. 
Tongue openly emarginate behind. “Vomerine teeth in two 
transverse groups on a level with the anterior edge of the choane. 
Snout longer than the diameter of the eye; upper lp somewhat 
projecting ; loreal region slightly oblique ; interorbital space broader 
than the upper eyelid; tympanum half the diameter of the eye. 
Fingers and toes free; first toe much longer than second; digital 
dilatations of hand largest, a little larger than the tympanum. The 
hind limb being carried forwards along the body, the tibio-tarsal 
articulation marks the front of the eye. Skin minutely granular 
above, with a few flat glands on the back; beneath granulate, ex- 
cept under the arms, legs, and tarsi, the granules very large and 
flat on the pectoral region ; parotoid stratum of crypts distinct, ex- 
tending from orbit to sacrum. Blue-green above, purplish on gular 
and thoracic regions; femur green, except below; two external 
digits of the same colour; sides with small whitish spots; a few 
whitish spots on lower surfaces. Size large. 
Upper Amazon, 
a-b. & & her. Pebas. H. W. Bates, Esq. [C. ]. 
9. Phyllomedusa burmeisteri. 
Phyllomedusa bicolor, part., Giinth. Cat. p. 120. 
Phyllomedusa bicolor, Burmeister, Erliuter, zur Fauna Brasil. p. 111, 
pl. 32; Cope, Proc, Ac. Philad. 1868, p. 112. 
Tongue entire. Vomerine teeth in two oblique groups between 
the choane. Snout longer than the diameter of the eye, obliquely 
truncated from behind forwards; loreal regions oblique; interor- 
bital space broader than the upper eyelid; tympanum about half 
the diameter of the eye. Fingers free, first shorter than second, 
