432 On new South- American Batrachians. 



nostril nearer the end of the snout than the eye ; tympanum 

 very distinct, nearly as large as the eye. Fingers rather 

 short, very obtuse, first much longer than second; subarticular 

 tubercles large and very prominent. Tibio-tarsal articulation 

 reaching the posterior border of the eye ; tibia 2\ times in 

 length Irom snout to vent. Toes rather short, obtuse, 

 perfectly free, not margined ; subarticular tubercles small, 

 prominent ; two metatarsal tubercles, inner elliptic and two- 

 thirds the length of the inner toe, outer round ; no tarsal 

 fold. Skin smooth ; no folds on the back. Pale brown 

 above, with large roundish black spots on the back and sides 

 and on the upper surface of the head ; five very regular 

 vertical black bars on each side of the head, traversing the 

 mouth, separated by narrower whitish bars ; tympanum 

 blackish, whitish in the centre ; limbs with black cross-bars ; 

 whitish beneath, spotted with black. 



From snout to vent 85 mm. 



A single specimen from Santa Fe, Argentina, received 

 from Mr. Falkland Ricketts in 1898. 



Hyla leptoscelis. 



Tongue circular, entire and slightly free behind. Vomerine 

 teeth on a level with the posterior borders of the very large 

 choanse, in slightly curved oblique series forming a chevron 

 pointing forwards. Head as long as broad, very strongly 

 depressed ; snout rounded, not projecting, as long as the eye ; 

 canthus rostralis obtuse ; loreal region very oblique, feebly 

 concave ; nostril near the tip of the snout ; interorbital 

 space a little broader than the upper eyelid; tympanum 

 distinct, half the diameter of the eye. Fingers moderate, 

 with moderately large disks, outer with a slight rudiment of 

 web ; no projecting rudiment of pollex. Hind limb extremely 

 slender ; tibio-tarsal articulation reaching a little beyond the 

 tip of the snout ; tibia eight times as long as broad, | the 

 length of head and body. Toes § webbed ; a feeble tarsal 

 fold. Skin smooth, granular on the belly and under the 

 thighs ; heel with a pointed dermal appendage, which is half 

 as long as the eye. Yellowish above, with purplish-brown 

 markings ; a large spot on the snout, two V-shaped bands 

 between the eyes, two cross-bars on the back, a V-shaped 

 band on the sacral region, and angular cross-bars on the 

 limbs. 



From snout to vent 26 mm. 



A single specimen from Lago do Iachy, above Sao Paolo 



