256 RANID^. 



Fingers free, toes | or nearly entirely webbed ; disks large, 

 but smaller than the tympanum; subarticular tubercles weak; 

 a small, very feeblj^ prominent inner metatarsal tubercle. The 

 tibio-tarsal articulation reaches the tip of the snout. Upper 

 parts rough with small conical, granular tubercles ; throat smooth, 

 belly coarsely granulate. Blackish, the granules on the upper 

 parts appearing as white dots, or ashy grey with a large square 

 or triangular dark brown marking on the back, a cross-bar 

 between the eyes, and cross-bars on the limbs ; throat black, 

 belly and lower surface of limbs marbled black and bluish grey, 



Erom snout to vent 35 millim. 



Discovered in the Larut Hills, Perak, at 3300 feet elevation, by 

 Mr. L. AVray, and rediscovered in the same hills, between 3500 

 and 4000 feet, by Mr. A. L. Butler. Has also been found on 

 Bukit Itam, Selancor, 3000 feet, by Mr. Eobinson. Further 

 known from the Karin Hills in Burma and the hills between 

 Burma and Siam. 



274. Ixalus horridus. 



Bouleng. Fascic. Malay., Zool. i, p. 139, pi. vi, fig. 2 (190-3). 



Head rather strongly depressed, the obtusely pointed snout 

 a little longer than the orbit; canthus rostralis obtuse; loreal 

 region concave ; nostril close to the end of the snout ; inter- 

 orbital space a little narrower than the upper eyelid ; tympanum 

 distinct, as large as the eye. Fingers half-webhed, Avith large 

 disks which are broader than long and as broad as the tympanum ; 

 toes webbed to the disks, which ai-e smaller than those of the 

 fingers ; subarticular tubercles very small ; a small, oval inner 

 metatarsal tubercle. The tibio-tarsal articulation reaches between 

 the eye and the tip of the snout. Upper parts with very pro- 

 minent, irregular large warts, themselves studded with granular 

 asperities in the adult ; throat, breast, lumbar and autero-feraoral 

 region and lower surface of limbs smooth ; belly and anal region 

 with large ilat granules. Dark warm-brown above, with rather 

 indistinct blackish spots on the body and regular cross-bars on the 

 limbs ; the granular asperities greyish ; a large black lumbar spot; 

 webs blackish ; lower parts blue-grey, largely spotted and marbled 

 with black. Male with a large soft pad on the inner side of the 

 first finger and an internal vocal sac. 



From snout to vent 40 millim. 



The tadpole has the body much depressed ; eyes supex'ior. The 

 mouth has a circular lip as in Eana, the sides and lower edge 

 fringed with papillae ; upper lip with a long series of fine horny 

 teeth, followed on each side by 3 series ; 3 interrupted series of 

 teeth on the lower lip. Spiraculum sinistral, anus dextral. Tail 

 2| to 3 times as long as deep, rounded at the end, the upper crest 

 not extending on the body. Uniform dark brown or blackish, 

 with whitish lines of sensory organs. Length up to 50 millim. 



