1922] Smith: Reptiles and Batrachians. 2*75 



Rana cataracta, sp. nov. 



Type adult male, Author's No. 6164, collected on Khao 

 Ram, Nakon Sritamarat Hills, Peninsular Siam, at 300 

 metres elevation, in Feb. 1922. 



Description of type. Vomerine teeth in moderately 

 strong, oblique series, commencing between the choanae 

 and extending beyond their posterior borders, equidistant 

 from each other and from the choanae. Head a little longer 

 than broad, much depressed ; snout obtusely pointed, 

 projecting a little beyond the mouth. Canthus rostralis 

 strong, slightly oblique, deeply concave ; nostril nearer the 

 end of the snout than the eye ; distance between the nostrils 

 greater than the interorbital width, which is less than that 

 of the upper eyelid ; eye large and prominent, its diameter 

 nearly equal to the length of the snout ; tympanum very 

 distinct, f the diameter of the eye, not half as long as its 

 distance from the latter. 



Fingers moderately long, the tips dilated into large 

 discs, those of the third and fourth considerably smaller 

 than the tympanum ; first finger slightly shorter than 

 second, third longer than the snout ; subarticular tubercles 

 large and prominent. 



Hind limb long, the tibio-farsal articulation reaching 

 well beyond the tip of the snout ; heels strongly over- 

 lapping when the limbs arc folded at right angles to the 

 body ; tibia once and three-fifths in length of head and body, 

 longer than the foot ; a feeble tarsal fold ; toes with discs 

 similar to but smaller than those of the fingers, fully 

 webbed, the web involving the bases of the discs, slightly 

 emarginate ; outer metatarsals separated to the base ; 

 subarticular tubercles moderately large, prominent ; inner 

 metatSi'sal tubercle oval, somewhat flattened, one-third the 

 length of the inner toe ; no outer tubercle. 



Upper parts finely granulate ; coarsely granulate be- 

 hind the thighs and upon the sides of the body, the latter 

 also with numerous small warts ; lower parts smooth. A 

 moderately broad and fairly prominent glandular dorso- 

 lateral fold from the eye to the hip. 



Colour. Verdant green in life above, greyish in spirits; 

 sides of the head and body a little darker ; limbs with 

 indistinct cross bars ; upper lip and the glandule behind 

 it, white. Lower parts white. 



Vocal vescicles internal ; a moderately strong pad on 

 the first finger. No other sexual characters. 



Variation. 21 specimens examined, 1 1 5 3 $ , from 

 the type locality, 4^ 3$ from Fraser's Hill. Except 



