i()2o.J G. A. BouLENGER : Frogs of the Genus Rcuia. 215 



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

 similar to those of the fingers, but smaller, feebh^ webbed, the web 

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

 separated to the base ; subarticular tubercles moderate ; no tarsal 

 fold ; inner metatarsal tubercle oval, fiat, h to 'i, the length of the 

 inner toe ; no outer tubercle. 



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

 fold from below the e^'e 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 yellowish, throat and breast usually brown or speckled with 

 brown. 



]\Iales 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 ^'ellow- 

 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 with 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 e^'e and another on each side of the 

 belly, near the base of the tail. 



Eggs 2 millimetres in diameter, not pigmented. 



Measurements, in millimetres. 



i-io. Darjiling (types of p. cA/oroHo/i^s). 11-12. Thagata, Tenasserim. 



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

 Perak. 



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

 conota with/?, latopalmata and its allies, and speaks against Cope's 



