Mr. G. A. Boulenger on new Batraclrians. 277 



Hyla ocelli/era. (PI. XII. fig. 4.) 



Tongue circular, entire, slightly free behind. Vomerine 

 teeth in two round groups close together between the choanse. 



&* 



ips 



Head much depressed, broader than long ; snout rounded, 

 shorter than the diameter of the orbit ; canthus rostralis in- 

 distinct; loreal region very oblique, slightly concave ; nostril 

 nearer the tip of the snout than the eye ; eye very large and 

 prominent ; upper eyelid rather narrow, narrower than the 

 interorbital space ; tympanum distinct, hardly one third the 

 diameter of the eye. Outer fingers broadly webbed, the web 

 reaching the penultimate joint of the third ringer and the disk 

 of the fourth ; toes nearly entirely webbed ; disks a little 

 larger than the tympanum. The tibio-tarsal articulation 

 reaches the tip of the snout j tibia half the length of head 

 and body. Skin smooth, areolate on the belly and under the 

 thighs. Bluish grey above, dotted with black ; one or two 

 small white black-edged ocelli on each scapular region ; thigh 

 colourless, except a very narrow streak of bluish grey along 

 its upper surface; arms, hands, and feet colourless; lower 

 parts white. 



From snout to vent 28 millim. 



A single specimen from Paramba, N.W. Ecuador. 



Apparently nearest allied to H. sordida, Ptrs. 



I avail myself of this opportunity to change the name 

 Hyla microcephala, Blgr. (P. Z. S. 1898, p. 481) nee Cope 

 (Proc. Amer. Phil. Soc. xxiii. 1886, p. 281), to H. Under- 

 woodi. 



EXPLANATION OF THE PLATES. 



Plate XL 



Fig. 1. Rana larutensis, p. 273. 



Fig. 1 a. Ditto. Open mouth. 



Fig. 2. Rappia phantastica, p. 274. 



Fig. 3. Phyllobates Pratti, p. 274. 



Fig. 4. Dendrobates opisthomelas, p. 275. 



Plate XII. 



Fig. 1. Microhyla leucostigma, p. 275. 

 Fig. 2. Bufo gracilipes, p. 276. 

 Fig. 3. Hyla picturata, p. 276. 

 Fig. 3 a. Ditto. Open mouth. 

 Fig. 4. Hyla ocellifem, p. 277. 



