362 HTLID^. 



Tongue subcircular or suboval, entire or slightly nicked, and 

 sHglitly free behind. Vomerine teeth in two series between the large 

 choana3, forming together an arch the convexity of which is turned 

 forwards. Head moderate, depressed, as long as broad. Snout 

 rounded or subacuminate, once and a half as long as the diameter of 

 the eye ; loreal region not very oblique, slightly concave ; canthus 

 rostralis angular, nearly straight ; interorbital space as broad as, or 

 a little broader than, the upper eyelid ; tympanum very distinct, two 

 thirds the diameter of the eye. Three outer fingers one-third 

 webbed ; no rudiment of pollex ; toes nearly entirely webbed ; disks 

 much smaller than the tympanum ; subarticular tubercles moderate. 

 The hind limb being carried forwards along the body, the tibio-tarsal 

 articulation marks the tip of the snout. Upper surfaces smooth, or 

 covered with small round tubercles, especially in males ; beneath 

 granulate ; a fold above the tympanum. Greyish or reddish brown 

 above, with dark-brown spots or cross bands ; a dark cross band 

 between the eyes appears to be constant ; loreal and temporal regions 

 dark brown ; a more or less distinct light spot under the eye : upper 

 surface of limbs with dark cross bauds ; sides of body and limbs 

 brownish, immaculate ; beneath whitish, immaculate. Male with two 

 large vocal vesicles, each being situated behind the angle of the 

 mouth ; during the breeding-season the inner side of the first finger 

 is covered with brown rugosities ; sometimes also brown rugosities 

 may be seen on the tubercles of the upper surfaces and under the 

 toes, as in Pelodytes 2>unctatns. From snout to vent 54 millim. 



S. America. 



a-b, c-d,e,f,g-l, 



m~o, p. '(^ 2 ■ Demerara Falls. 



q-s. c? • Interior of Brazil. 



t-v.i\ $. Sarayacu, Ecuador. Mr. Buckley [0.1. 



w. 2 • Canelos, Ecuador. Mr. Buckley C], 



27. Hyla buckleyi. (Plate XXV. fig. 1.) . 



Tongue subcircular, entire, slightlj- free behind. Vomerine teeth 

 in two series between the large choante, forming together an arch 

 the convexity of which is turned forwards. Head moderate, rather 

 depressed, as long as broad, or a little broader than long ; snout 

 rounded, once and a half as long as the diameter of the eye; loreal 

 region very oblique, concave ; canthus rostralis distinct, curved ; 

 interorbital space as broad as, or a little broader than, the upper 

 eyelid ; tympanum very distinct, two thirds or three fourths the 

 diameter of the eye. Three outer fingers one-third webbed ; no 

 rudiment of pollex ; toes nearly entirely webbed ; disks smaller than 

 the tympanum ; subarticular tubercles moderate. The hind limb 

 being carried forwards along the body, the tibio-tarsal articulation 

 reaches the tip of the snout, or nearly so far. Upper surfaces smooth 

 in females, tubercular in males • beneath granulate ; a slight fold 

 above the tympanum. Greyish or brownish above, marbled with 

 dark brown ; sometimes a light vertebral stripe ; limbs with dark 



