428 HTLID^E. 



free, first shorter than second, fourth a little shorter than third ; 

 toes free, first considerably longer than second ; disks of fingers and 

 toes mnch smaller than the tj-mpanum ; 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 bej^ond 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 Leon Yaillant. 



a. (S . Santarem. H. A. Wickham, Esq. [P.]. 



8. Phyllomedusa tarsius. 

 Pithecopus tarsius, Cojie, Proc. Ac. Philad. 1868, p. 113. 



Tongue openly emarginate behind. Yomerine teeth in two 

 transverse groups on a level with the anterior edge of the choanae. 

 Snout longer than the diameter of the eye ; ujiper lip 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 aloug 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 verj- 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-h. $ & hgr. Pebas. H. W. Bates, Esq. [C.]. 



9. Phyllomedusa burmeisteri. 



Phyllomedusa bicolor, part., Gi'mth. Cat. p. 120. 

 Phyllomedusa bicolor, Burmeister, Erlauter. zur Fauna Brasil. p. Ill, 

 pi. 32 ; Cope, Proc. Ac. Philad. 1868, p. 112. 



Tongue entire. Vomerine teeth in two oblique groups between 

 the choanae. 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, fij'st shorter than second, 



