202 MR. G. A. BOtJLENGER ON THE [Feb. 2, 



BATEACHIANS. 



I. Upper jaw toothed. 



A. Tongue entire, rounded behind 1. Oxyalossus lavis. 



B. Tongue bifid behind. 



1. Fingers quite free ; belly smooth or indistinctly areolate. 



a. Glandular dorso-lateral fold, if present, independent from the 



supratemporal fold ; tips of fingers not or but feebly dilated. 



a. Tips 01 toes dilated into small but \ery distinct disks. 



» Tympanum hidden 2. Rana kuhlii. 



»» Tympanum distinct, 

 t No dorso-lateral fold. 

 Tibio-tarsal articulation reaching the tip of the snout, or between the eye and 

 the tip of the snout ; toes entirely or nearly entirely webbed. 



3. Eana modesta. 

 Tibio-tarsal articulation reaching the nostril, the tip of the snout, or a little 



beyond the tip of the snout ; toes two-thirds or three-fourths webbed ; the 

 last three phalanges of the fourth toe extending beyond the fifth toe. 



4. Hana leytensis. 

 Tibio-tarsal articulation reaching far beyond the tip of the snout ; toes two- 

 thirds webbed 5. Rana r/ticrodisca. 



tt A narrow dorso-lateral fold. 6. Rana palavanensis. 

 j3. Tips of toes not dilated 7. Ranatigrina. 



b. Glandular dorso-lateral fold well developed, coutinuous with the 



supratemporal fold ; tips of fingers and toes dilated. 

 a. Sides smooth or with small warts. 



First finger extending as far as second ; digital disks very small ; lateral fold 

 broad 8. Rana erythrcBa. 



First finger extending beyond second ; digital disks small ; lateral fold narrow. 



9. Rana varians. 



First finger not extending quite so far as second ; disks of fingers large ; 

 lateral fold narrow 10. Rana everetti. 



13. Sides with large glands ; first finger extending as far as second ; 

 lateral fold broad 11. Rana. celebensis. 



c. Glandular dorso-lateral fold distinct only anteriorly; tips of 



fingers and toes strongly dilated ... 12. Rana macrops. 



2. Fingers with at least a rudiment of web, the tips strongly dilated ; 



belly granulate. 



Fingers with a very slight rudiment of web ; frontal region rugose. 



13. Rhacophorus leucomystax. 

 Outer fingers half -webbed; tibio-tarsal articulation reaching the tip of the 



snout or beyond 14. Rhacaphonts edentulus. 



Outer fingers two-thirds webbed; tibio-tarsal articulation not reaching the 



tip of the snout 15. Rhacophorus monfkola. 



II. Jaws toothless. 



A. Tips of fingers strongly dilated. 



1. No metatarsal tubercles. 



Tympanum indistinct, not more than one-third the diameter of the eye; tibio- 

 tarsal articulation reaching the eye or a little beyond. 



16. Sphenophryne celebensis. 

 Tympanum feebly distinct, two-thirds to three-fourths the diameter of the eye; 



tibio-tarsal articulation reaching the shoulder or the tympanum. 



17. Sphenophryne variabilis. 



