2o6 Records of the Indian Museum. [Vol. XX, 



Habitat. — Mountains of Hainan and Tonkin near the Kvvangsi 

 frontier. 



112. Rana monticola. 



Hylorana monticola, Anders. Joiirn. Ai. Soc. Beug. XL, 1871, p. 25; 



Stoliczka, Proc. As. Soc. Beng. 1872, p. 105. 

 .'' Hylorana pipiens, Stoliczka, t. c. p. lofi. 

 Rana monticola, Bouleng. Faun. Ind., Repi. p. 461 (1890). 



Vomerine teeth in oblique groups between the choanae, equally 

 distant from each other and from the latter, or a little nearer 

 to each other. 



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

 depressed ; snout rounded or obtusely pointed, feebly projecting 

 beyond the mouth, as long as the eye ; canthus rostralis distinct ; 

 loreal region feebly oblique, concave ; nostril equally distant from 

 the eye and from the tip of the snout ; distance between the nostrils 

 equal to the interorbital width or to that of the upper eyelid ; 

 tympanum distinct, \ to ^ the diameter of the eye, and f to i^ 

 times its distance from the latter. 



Fingers long and slender, terminating in rather large discs, 

 equal to or a little smaller than the tympanum, as long as broad 

 and bearing a groove separating the upper from the lower surface ; 

 first and second fingers equal, third longer than the snout ; sub- 

 articular tubercles moderately large, prominent. 



Hind limb long and slender, the tibio-tarsal articulation reach- 

 ing beyond the tip of the snout, the heels stronglj^ overlapping 

 when the limbs are folded at right angles to the body ; tibia 5 to 

 5J times as long as broad, li to i? times in length from snout to 

 vent, a little shorter than the fore limb, longer than the foot. 

 Toes ending in rather large discs, but a little smaller than those of 

 the fingers, nearly entireh' webbed ; outer metatarsals separated 

 nearly to the base : subarticular tubercles rather small, feeblj^ 

 prominent ; no tarsal fold ; inner metatarsal tubercle oval, j the 

 length of the inner toe ; no outer tubercle. 



Skin of upper parts smooth ; a narrow, feebly prominent, 

 glandular dorso-lateral fold from above the tympanum to the hip, 

 the distance between the two folds, on the back, 5 times in the 

 length from snout to vent ; a glandular fold from below the eye 

 tc the shoulder, followed by one or two glandules. Lower parts 

 smooth. 



Grey or brown above, uniform or with darker spots, sides 

 sometimes darker ; a dark brown canthal streak and a large tem- 

 poral spot; a light streak along the upper lip to the shoulder : 

 limbs with dark cross-bands. Yellowish white beneath. 



Males with an external vocal sac on each side of the throat ; 

 limbs very strong ; a strong pad on the inner side of the first 

 finger. 



Nasal bones small, oblique, widely separated from each other 

 and from the frontoparietals ; ethmoid exposed but not extending 

 to between the nasals. Terminal phalanges T-shaped. 



