1920.] 



G. A. BouLENGER : Frogs of the Genus Rana. 



175 



little exceeds the interorbital width, or that of the upper eyelid ; 

 tympanum very distinct, ? to i, the diameter of the eye and i^ 

 to 2 times its distance from the latter. 



Fingers rather long, terminating in small discs, which are 

 longer than broad and divided b}^ a groove into an upper and a 

 lower portion ; first finger as long as or a little longer than the 

 second, third much longer than the snout; subarticular tubercles 

 moderatel}^ large, moderately prominent. 



Hind limVj long; tibio-tarsal articulation reaching the tip of 

 the snout or a little beyond ; heels overlapping when the limbs are 

 folded at right angles to the body ; tibia 4 to 5 times as long as 

 broad, i? to i| times in length from snout to vent, as long as or a 

 little shorter than the fore limb, slightly or a little longer than the 

 foot. Toes ending in small discs, same as those of the fingers, 

 webbed to the discs; subarticular tubercles rather small, moder- 

 ately prominent ; no tarsal fold ; inner metatarsal tubercle rather 

 small, feebly prominent, l to I the length of the inner toe ; no 

 outer tubercle. 



Back finely areolate or granulate, sides often with large fiat 

 warts; males with minute white spinose tubercles on the sides. 

 Lower parts smootli. 



Olive above, witli large roundish brown spots, the ground colour 

 sometimes forming a mere network between them ; sides with 

 black spots ; limbs with numerous dark cross-bands ; hinder side of 

 thighs yellow, spotted or marbled witli black. Lower parts wliite, 

 throat sometimes marbled with brown. 



Males with internal vocal sacs ; fore limb much thickened, the 

 inner finger with a large pad, covered, during the breeding season, 

 with a velvety gre}^ horny layer. 



Nasals small and widely separated from each other and from 

 the frontoparietals ; upper part of ethmoid largely uncovered 

 anteriorly. 



Measurements^ in millimetres. 



I. Hotha Valley, Yunnan (type). 

 Kuatun, N.-W. Fokien. 5, Foochow. 



2-3. Kakhien hills, Upper Burma. 4. 



