igzo.J G. A. Bori,ENGEK : Frogs of the Genus Rana. 167 



Kiuui tyfleri, pan., Boulcnu;. Funu. Iiui., Kept. p. 45S 11X901; Annanrl. 

 ilein. Ai. Soc. Botg. VI, 1017, p. 141. 



Riuia iiigi-oviffiifa, part., W. Sclater, Pn>c. Zool. Soc. 1892. p. •;45. 



Rana alticola, part., .'\nnand. Rec. hid. Miis- \"III, IQ12, p. 8. 



Rtnni leptoglossa iii'iii Copei. .\nn;ind. Mem. .^s Soe Beng. \'l, 1917. 

 p. 140, "Hg. 

 Vomerine teeth in short obhque series between the choanae or 

 extending a little beyond the lev^el of their posterior borders, 

 equally distant from each other and from the latter. 



Head longer than broad, much depressed ; snout a little longer 

 than the eye, more or less obtusely pointed, moderatel}- or feebly 

 projecting beyond the mouth ; canthus rostralis strong ; loreal 

 region feel)ly oblique, concave ; nostril nearer the end of the snout 

 than the eye ; distance between the nostrils equal to or a little 

 less than the interorbital region, which equals or exceeds that of 

 the upper eyelid ; tymi)anum very distinct. ■; to nearly once the 

 diameter of the eye, 2 to 5 tunes as long as its distance from the 

 latter. 



Fore limb slender ; fingers long and slender, with siuall discs 

 which are longer than broad and bear a groove separating the 

 upper from the lower surface ; first finger a little longer than the 

 second, third longer than the snout ; subarticular tubercles large, 

 verj- prominent. 



Hind limb long and slender ; tibio-tarsal articulation reaching 

 the tip of the snout or beyond ; heels strongly overlapping when 

 the limbs are folded at right angles to the body ; tibia 5 to 6 

 times as long as broad, \% to v] times in length from snout to vent, 

 as long as or a little shorter than the fore limb, considerably longer 

 than the foot. Toes slender, with discs same as those of the 

 fingers but a little broader, webbed to the discs of the third and 

 fifth, two phalanges (rarely one only) of fourth free ; outer meta- 

 tarsals 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 more or less distinct outer 

 tubercle. 



Skin smooth ; a feebly prominent, narrow glandular dorso- 

 lateral fold from above the t^^mpanum to the hip, its distance 

 from its fellow, on the back, 6 to 6| times in length from snout 

 to vent ; another, sometimes indistinct, from behind the tympanum 

 to the shoulder. 



I/ight brown above, scarcely or not spotted, sides dark brown ' ; 

 a light vertebral streak may be present above the coccyx ; dorso- 

 lateral fold whitish, black-edged on the outer side ; upper lip 

 whitish with a dark margin ; limbs with or without narrow dark 

 cross-bands. L,ower parts white, the throat brown or with crowded 

 brown spots, usually with a light median line. 



Males with internal \-ocal sacs ; no other secondary sexual 

 characters. 



• The light bar ascending from the upper lip between the eye and the tympa- 

 num, reg.uded by .'Vnnandalc as a specific character of R. leptoglossa, is pre- 

 sent Ml one of the specimens from Klong Beng Lai. 



