1920.] G. A. BouLENGEk : Frogs of the Genus Rana. 161 



Fingers long and slender, terminating in small discs, which 

 are a little longer than broad, measuring |- to \ the diameter of the 

 tympanum, and bear a horseshoe-shaped groove separating the 

 upper from the lower surface; first finger longer than the second, 

 third much longer than the snout ; subarticular tubercles large and 

 very prominent. 



Hind limb long and rather slender ; tibio-tarsal articulation 

 reaching the tip of the snout, heels strongly overlapping when the 

 limbs are folded at right angles to the body ; tibia 5 to 5J times as 

 long as broad, about if times in length from snout to vent, shorter 

 than the fore hmb, a little longer than the foot. Toes ending in 

 well-developed discs, similar to those of the fingers ; web reaching 

 the discs of the third and fifth, two phalanges of fourth free ; outer 

 metatarsals separated nearly to the base ; subarticular tubercles 

 large and prominent ; no tarsal fold ; inner metatarsal tubercle 

 oval, about ^ the length of the inner toe ; a round outer tubercle. 



Skin smooth above, or rough with small granular asperities ; 

 a narrow glandular dorso-lateral fold from above the tj^mpanum 

 to the hip, stronger in front ; the distance between the dorso- 

 lateral folds, on the back, 5 to 6 times in length of head and body ; 

 a glandular fold from below the eye to the shoulder. Lower parts 

 smooth. 



Grey or olive above, sides of head darker ; tympanum brown ; 

 dorso-lateral fold not darker ; limbs with dark cross-bands. Lower 

 parts much spotted or marbled with dark brown, the throat and 

 breast nearly entirely of a dark brown. 



Males with internal vocal sacs ; fore limb very strong, with a 

 flat gland on the inner side of the arm. 



Nasal bones narrow, oblique, widely separated from each 

 other and from the frontoparietals ; ethmoid largely exposed 

 above, extending to between the nasals. 



Kggs 2 millim. in diameter. 



Measurements of types, in millimetres. 



Prom suout to vent . . 



Head 



Width of head 



Snout 



Eye 



Interorbital width 



Tympanum 



Fore limb . . 



First finger 



Second finger 



Third finger 



Fourth finger 



Hind limb . ^ 



Tibia 



Foot 



Third toe . . 



Fourth toe. . 



Fifth toe .. .. .. .. 21 20 20 25 



Habitat. Flores, above 3,000 feet. 



