1920.] O. A. BouLENGER : Fro^s of the Genus Rmui. 215 



shorter than the fore Hnib, longer than the foot. Toes with discs 

 similar to those of the lingers, but smaller, feebly webbed, the web 

 feebly notched and involving the base of the discs ; outer metatarsals 

 separated to the base ; subarticular tul)ercles moderate ; no tarsal 

 fold; inner metatarsal tubercle oval, flat, ', to r the length of the 

 inner toe ; no outer tubercle. 



Skin smooth , flanks and back of thighs granulate ; a glandular 

 fold from below the eye to the shoulder, followed by a glandule. 



Upper surface of head and body green, with or without a few 

 black spots, sides of head and body dark brown ; a white streak 

 along the upper lip ; limbs with blackish cross-bands ; groin and 

 back of thighs with yellow spots or marblings. Lower parts white 

 or 3'ello\visli, throat and breast usually brown or speckled with 

 lirown. 



Males with an external vocal sac on each side of the throat, in 

 front of the arm ; fore limb strong ; a thick pad on the inner side 

 of the first finger, covered during the breeding season, with a yellow- 

 ish velvety horny la3-er. 



Nasal bones small, widely separated from each other ; eth- 

 moid exposed above and truncate or rounded in front. Terminal 

 phalanges T-shaped. 



Tadpoles from Tenasserini, referred v\ith doubt to this species, 

 and badly preserved as regards the labial teeth, are provided with 

 a ventral sucking-disc, and are peculiar in having a round black 

 spot on each side behind the eye and another on each side of the 

 belly, near the base of the tail. 



Rggs 2 millimetres in diameter, not pigmented. 



Measufeinents, in niillitnetres. 



i-io. Darjiling (types of p. c/i/o»-oHci<»s). 11-12. Thagata, Tenasserim. 



Habitat. Eastern Himalayas, hills of Assam, Tenasserim, and 

 Perak. 



This handsome frog links the species grouped round R. chal- 

 coiio'n with/?, latopalviata and its allies, and speaks against Cope's 



