142 Mr. G. A. Boulenger on a new Frog from Burma. 



region concave ; nostril much nearer to the end of the snout 

 than to the eye ; interorbital space as broad as the upper 

 eyelid ; tympanum very distinct, nearly as large as the eye. 

 Fingers and toes rather slender, merely swollen at the ends ; 

 first finger extending distinctly beyond second ; foot half as 

 long as head and body; toes entirely webbed ; subarticular 

 tubercles rather feeble ; inner metatarsal tubercle feebly 

 prominent, oval, about one third the length of the inner toe ; 

 no outer tubercle. The tibio-tarsal articulation reaches half- 

 way between the eye and the end of the snout. Skin finely 

 granulate above ; a prominent glandular lateral fold, about 

 half as broad as the upper eyelid ; anotlicr fold from the eye 

 to the shoulder, followed by a prominent gland. Black 

 above, uniform or marbled with pale brown, and with five 

 whitish stripes, the middle extending from between the nostrils 

 to above the vent, the upper pair runain": along the glandular 

 lateral fold, the lower pair from the end of the snout along 

 the upper lip, which is edged with brown, to the groin; sides 

 of upper surface of snout and upper eyelids pale brown ; limbs 

 ])ale bronzy brown, with small black spots or marblings, 

 which are confluent into longitudinal • streaks on the sides of 

 the tibia3 ; hinder side of thighs black, spotted or marbled 

 with white ; lower parts white, uniform or spotted with 

 brown. Male with a large, blackish, external vocal sac on 

 each side below the mandible, extending from below the 

 centre of the eye to the fore limb ; a humeral gland. 



From snout to vent, $ 80, ? 75 millim. 



Several specimens were obtained near Toungoo by ^Ir. 

 E. W. Gates. 



This very handsome frog is most nearly allied to R. hxune- 

 raJis, BIgr., from whicii it differs in the longer head and the 

 still more feebly developed digital expansions. The shoiter 

 hind limbs, the longer web between the toes, and the longer 

 inner finger are characters which differentiate it at once 

 from R. macrodactyla^ Gthr., which has a somewhat similar 

 coloration. 



EXPLANATION OF PLATE L\. 

 Hana Oatesii, c? , and side view of Lead aud opeu luoulh. 



