1920.] G. A. BouLENGER : Frogs of the Genus Rana. 185 



upper lip and the side of the body to the groin ; limbs pale brown 

 with dark cross-bars. Yellowish white beneath. 



From snout to vent 50 millim. 



Habitat. Sumatra. 



This species is described as allied to A', litctiiosa, but having 

 much in common with R. javanica (nicobariensis). 



The single specimen is from Deli. 



100. Rana grisea. 



Rana grisea, van Kampen, Nova Guinea, IX, Zool. p. 4()o, pi. xi, fior. ^ 

 (1913) ; Bouleng. Tr. Zool. Soc. XX, 191-I., p. 250. and Ann. and Mag. 

 N.N. (9) I, 1918, p. 239. 



? Rana novtF-britanniie, part., Werner, Vei-li. Zool.-bot. Ces. Wien, \.\, 

 igoi, p. 614. 



Vomerine teeth in oblique groups or short sei'ies between the 

 choanae or extending a little beyond the level of their posterior 

 borders, a little nearer to each other than to the latter. 



Head as long as broad or a little longer than broad, much 

 depressed; snout rounded, projecting bej'ond the mouth, as long 

 as the ej-e or a little longer ; canthus rostralis strong ; loreal region 

 not very oblique, deeply concave ; nostril a little nearer the tip of 

 the snout than the eye ; distance between the nostrils greater than 

 the interorbital width, which equals f that of the upper eyelid; 

 tympanum very distinct, | to % the diameter of the ej'e and \\ to 

 3 times its distance from the latter. 



Fingers long and slender, terminating in small but very 

 distinct discs, which are a little longer than broad and bear a 

 horseshoe- shaped groove separating the upper from the lower sur- 

 face; first finger longer than the second, third much longer than 

 the snout; subarticular tubercles large and verj' prominent. 



Hind limb long, the tibio-tarsal articulation reaching beyond 

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

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

 broad, \'l to It times in length from snout to vent, slighth- shorter 

 or slightly longer than the fore limb, longer than the foot. Toes 

 ending in well-developed discs, similar to but a little larger than 

 those of the fingers, entirely webbed or two phalanges of fourth 

 free; outer metatarsals separated nearly to the base; subarticular 

 tubercles moderately large, prominent; no tarsal fold; inner meta- 

 tarsal tubercle elliptic, -i the length of the inner toe ; a round 

 outer tubercle. 



Skin of upper parts smooth or finely granulate, with a few 

 scattered small warts and white spinulose tubercles, which are verj' 

 crowded on the dorso-lateral folds; a rather narrow glandular 

 dorso-lateral fold from above the tympanum to the hip or not quite 

 so far ; the distance between these folds, on the back, 5 times in the 

 length of head and body ; a glandular fold from below the eye to 

 the shoulder. Lower parts smooth. 



Brown above, uniform or with small darker spots, loreal and 

 temporal regions darker; tj'mpanum reddish brown; limbs with 



