1920.] G. A. BouLENGER : Frogs of the Genus Rana. 



209 



Hind limb long, the tibio-tarsal articulation reaching far be- 

 yond the tip of the snout, the heels strongly overlapping when the 

 limbs are folded at right angles to the body ; tibia 6 to 6^ times 

 as long as broad, li to ij times in length from snout to vent, a 

 little shorter than the fore limb, longer than the foot. Toes with 

 discs similar to but smaller than those of the fingers, webbed to 

 the discs of the third and fifth, two phalanges of fourth free ; 

 outer metatarsals separated nearly to the base ; subarticular 

 tubercles moderate ; no tarsal fold ; inner metatarsal tubercle 

 oval, feebly prominent, ^ the length of the inner toe ; outer tubercle 

 ver}^ small or absent. 



Skin smooth ; a narrow glandular dorso-lateral fold, from 

 above the tympanum to the hip. its distance from its fellow, on 

 the back, 6 to 7 times in length from snout to vent. 



Greyish or olive above, with or without a narrow light verte- 

 bral streak ; a blackish canthal streak and temporal spot ; tym- 

 panum reddish brown ; upper lip with a light dark-edged streak ; 

 limbs with dark cross-bands. Whitish beneath, throat and breast 

 sometimes brown. 



Male unknown. 



Nasal bones narrow, oblique, widely separated from each 

 other and from the frontoparietals ; ethmoid exposed above, 

 truncate in front, not extending to the nasals. 



Measurements of types^ in millimetres. 



58 43 



15 



38 

 14 



37 

 14 



From snout to vent 



Head .. 



Width of head 



Snout 



Eye 



Interorbital width . . 



Tympanum 



Fore limb 



First finger 



Second finger 



Third finger 



Fourth finger 



Hind limb 



Tibia 



Foot 



Third toe 



Fourth toe 



Fifth toe 



Habitat. This species is known from four specimens (female 

 and half-grown) from the highlands of Lepauto, Luzon, Philippines. 



115. Rana mearnsii. 



Rana mearusi, Stejneg. Proc. U. S. Nat. Mus. XXVIII, 1905, p. 343. 



Vomerine teeth in oblique groups commencing on a line 

 with the hinder edge of the choanae. 



Head longer than broad ; snout rather pointed, considerably 

 longer than the eye ; canthus rostralis well marked ; loreal region 

 concave ; nostril nearer the tip of the snout than the eye ; inter- 



