52 Records of the Indian Museum, [Vol. XX, 



17. Rana pileata. 



Rana pileata, Bouleng., Journ. N.H. Soc. Sinm, I, 1916, p. 104, pi. — . 



Vomerine teeth in rather short, strong, oblique series just be- 

 hind the level of the choanae. Lower jaw with two large, fang-like 

 bon}' prominences in front, in the males. 



Head moderate in females, very large in males, moderately 

 depressed, a little broader than long ; in the males, strong swellings 

 on the lower surface of the mandible and on each side of the 

 occiput; snout rounded or obtusely pointed, scarcely projecting 

 beyond the mouth, as long as or longer than the eye ; canthus 

 rostralis obtuse ; loreal region moderately oblique, slightly concave ; 

 nostril nearer the tip of the snout than the eye ; the distance be- 

 tween the nostrils equal to or a little greater than the interorbital 

 width ; interorbital region little broader than the upper eyelid in 

 females and half-grown males, twice as broad and very convex in 

 full-grown males ; in these the frontoparietals form a swelling, as in 

 R. macrognathus and R. plicatella ; behind the interorbital region 

 a large dermal flap in full-grown males, rounded and completely 

 detached behind ; in smaller males this flap is less developed and in 

 females and young it is absent or represented by a faint semi- 

 circular fold ; tympanum distinct, f or * the diameter of the eye 

 in females, as large as or a little larger than the eye in adult 

 males. 



Fingers moderate or rather short, blunt, first a little longer 

 than the second, third a little longer than the snout ; subarticular 

 tubercles moderate. 



Hind limb moderately long, the tibio-tarsal articulation reach- 

 ing the eye, the heels overlapping when the limbs are folded at 

 right angles to the body ; tibia 3 to 31 times as long as broad, 2 to 2\ 

 times in length from snout to vent, shorter than the fore limb, as 

 long as or a little longer than the foot. Toes moderate, the tips 

 dilated into small discs, -^ to nearly entirely webbed ; subarticular 

 tubercles moderate ; a feeble tarsal fold ; inner metatarsal tuber- 

 cle feebly prominent, i to i the length of the inner toe ; no outer 

 tubercle. 



v*^kin with irregular, flat glandules on the back and small tuber- 

 cles on the upper e^^elids ; a strong glandular fold from the eye to 

 the shoulder. Lower parts smooth. 



Green, olive, or brown above, young and half-grown often with 

 a strong tinge of red, with darker spots or marblings, or with dark 

 edges to the dorsal glandules ; a more or less distinct yellowish 

 angular band, dark-edged behind, between the eyes ; lips with 

 dark vertical bars ; some specimens with a yellow median stripe 

 from the tip of the snout to the vent ; limbs with dark cross-bars. 

 Lower parts white or pale yellow, throat sometimes spotted with 

 brown. Iris golden-green, veined with black and with a black cross. 



Males without vocal sacs. 



Ripe ova measuring 3 millim. in diameter in female 52 millim. 

 from snout to vent. 



