1920.] 



G. A. BouLENGER : Frogs of the Genus Rana. 



on the anterior part of the back, where the distance between the 

 two is ^ to nearly v',, the length of head and body ; a strong glan- 

 dular fold from the eye to the shoulder : lower parts smooth. 



Brown above, with blackish canthal and temporal baud, the 

 latter involving the tympanum ; a dark cross-band between the eyes ; 

 lips with dark vertical bars; dorso-lateral fold sometimes whitish, 

 edged with blackish on the outer side ; limbs with dark cross-bands. 

 V.'hitish beneath, with dark mottling on the sides of the throat. 



Tadpoles, obtained at Kurseong by Dr. Annandale, are very 

 similar to those of R. liebigii. Tail pointed, 2|- to 2|- times as 

 long as the body. Lips large, the upper with a series of papillae 

 on the sides, the lower with two complete series ; beak entirely 

 black ; 7 series of upper labial teeth, only the outer continuous ; 

 3 series of lower labial teeth, all continuous or the inner or the 2 

 inner very narrowh' interrupted. Total length up to 58 milli- 

 metres. 



Measurements in mUlunetres. 



I — 2. Pashok. 3. Kurseong. 



Habitat. Khasi hills and Eastern Himalayas. 



[This frog is v&ry common amongst dense herbage in low 

 bushes at the edge of shady jungle streams in the Eastern Hima- 

 layas at altitudes between 4 and 6000 ft. N. .4.] 



This species was established on a single female specimen, then 

 in the Indian Museum, procured by the late Dr. Jerdon in the Khasi 

 hills. I took notes on the specimen before its return to the 

 Indian Museum, from which,! am informed by Dr. .Annandale, it 

 has now disappeared. I have also examined two female specimens 

 from Pashok, Darjiling di.strict, 3500 ft., and a third from Kur- 

 seong in the same district, preserved in the Indian Museum; the 

 above measurements are taken from these specimens. 



Dr. Annandale united R. assatiiensis with R. vidua, but the 

 former differs from the latter in three important characters : — The 

 position of the vomerine teeth, which do not extend at all be- 

 yond the level of the posterior Ijorders of the choanae ; the distinct 



