1920.] G. A. BouivENGER : Frogs of the Genus Rana. 67 



tubercle of the metatarsus. The first and second fingers of nearl}^ 

 equal length, about half shorter than the third ; the fourth about 

 one-third shorter than the third. Thigh rather short, lower leg 

 little shorter than the thigh. Tarsus and foot the length of the 

 thigh and one half of the tibial portion. The body very little 

 longer than the distance between the vent and the heel. The 

 shovel-shaped (metatarsal) prominence laterally compressed, but 

 not prominent. Two apophyses on the lower jaw. The choanae 

 are round, more distinctly defined, but rather smaller, than the 

 eustachian tubes ; vomerine prominences placed transversely be- 

 hind the choanae and separated from each other by a narrow inter- 

 val. Tongue rather small, cordate and notched behind. Uniform 

 brown above, faintly barred on the thighs ; spotted with brown on 

 the sides, chin, thorax, and under surface of limbs." 

 Habitat. Khasi Hills. 



26. Rana laticeps. 



Rana laticeps, Bouleng., Cat. Batr. Ecaiid. p. 20, pi. i, fig. i (1882), and 

 Faun. Ind., Rept. p. 444 (1890); S. Flower, Proc. Zool. Soc. 1896, 

 p. 897; Bouleng., Faun. Mai. Pen., Rept. p. 230 (1912). 



Vomerine teeth in strong oblique groups or series just behind 

 the level of the choanae. Lower jaw with two bony prominences 

 in front, feebl}^ developed in females, large, acute and directed 

 backwards in adult males. 



Head larger in males than in females, much depressed, broader 

 than long ; snout rounded or obtusely pointed, feebly projecting 

 beyond the mouth, as long as or a little shorter than the eye ; can- 

 thus rostraHs obtuse ; loreal region more or less oblique, slightly 

 concave ; nostril a little nearer the end of the snout than the eye ; 

 the distance between the nostrils not or but little greater than the 

 interorbital width, which equals or exceeds that of the upper eye- 

 lid; tympanum feebly distinct, f to f the diameter of the e^^e and 

 I to i| times its distance from the latter. 



Fingers moderate, obtuse or slightly swollen at the end, first 

 and second equal or first slightly the longer, third longer than the 

 snout ; subarticular tubercles moderate, moderately prominent. 



Hind limb rather long, the tibio-tarsal articulation reaching 

 between the eye and the tip of the snout, the heels overlapping 

 when the limbs are folded at right angles to the body ; tibia 2^ to 

 3-| times as long as broad, 14 to 2 times in length from snout to 

 vent, as long as or slightly longer than the foot, a little shorter 

 than the fore limb. Toes with the tips dilated into small discs, f 

 to I webbed, the last or last two phalanges on the fourth free 

 (narrowly bordered) ; subarticular tubercles moderate, moderately 

 prominent ; a narrow tarsal fold ; inner metatarsal tubercle narrow, 

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

 tubercle. 



Skin often corrugated above, with small elongate warts and 

 rounded tubercles ; a fold above the tympanum ; lower parts 

 smooth, throat sometimes corrugated. 



