ixALUS. 255- 



with a rudiment of web ; toes half webbed ; disks of fingers 

 as large as the tympanum; subarticular tubercles moderate: 

 a small inner metatarsal tubercle. The tibio-tarsal articulation 

 reaches between the eye and the tip of the snout. Upper parts 

 smooth : throat, belly, and lower surface of thighs granulate. 

 Olive-green above, closely vermiculate with black ; upper surface 

 of thighs with a series of large black blotches ; sides of thighs 

 and anal region orange-yello\^• ; white beneath. Male with a 

 large gular vocal sac. 



From snout to vent 33 millim. 



Described from three specimens from the Larut Hills, Perak, at 

 4000 feet altitude, obtained by Mi-. A. L. Butler among ferns 

 and moss. 



272. Ixalus pictus. 



Peters, Mon. Berl. Ac. 1871, p. 580; id. Ann. Mus. Civ. Gtinova, 

 iii, p. 44, pi. vi, fig. 3 (1872) ; Bouleng. Cat. Batr. Ecaud. p. 99 

 (1882); S. Flower, P. Z. S. 1896, p. 908; A. L.Butler, Jouru. 

 Kat, Hist. Sec. Bombay, xv, p. 203 (1903) ; Robinson, Jouru. 

 Fed. Malay States Mus. i, p. 30 (1905). 



Snout pointed, longer than the orbit ; canthus rostralis strong ; 

 loreal region nearly vertical, slightl}^ concave ; nostril nearer tip 

 of snout than eye ; interorbital space broader than the upper 

 eyelid ; tympanum very distinct, | to ^ diameter of eye. Fingers 

 free, toes half-webbed; disks large, but smaller than the tympanum ; 

 subarticular tubercles moderate; a small, very feebly prominent 

 inner metatarsal tubercle. The tibio-tarsal articulation reaches. 

 the end of the snout or a little beyond. Upper parts rough with 

 small granular tubercles ; throat smooth, belly coarsely granulate. 

 Light brown or bright reddish orange above, head, body, and limbs 

 with cream-coloured, dark-edged spots; belly white, with or without 

 blotches of greenish black. Iris golden in its upper half, bronze- 

 brown in its lo\^"er half. 



From snout to vent 35 millim. 



Malay Peninsula and Boi-neo. Obtained on Buldt Timah, 

 Singapore, by Dr. Hanitsch, and in the Larut Hills, Perak, at 

 4000 feet altitude, among dead leaves, by Mr. Butler, and on 

 Gunong Angsi, Negri Sembilan, at 2600 feet. 



273. Ixalus asper. 



Bouleng. P. Z. S. 1886, p. 415, pi. xxxix, fig. 1 ; \V. Sclater, 

 P. Z. S. 1892, p. 347 ; Bouleng. Ann. Mus. Civ. Genova (2) xiii, 

 p. 37 (1893) ; A. L. Butler, Journ. Nat. Hist. Soc. Bombav, xv, 

 p. 204 (1903). 



Snout rounded, as long as the orbit ; canthus rostralis very 

 feebly marked ; loreal region oblique, concave ; nostril nearer tip 

 of snout than eye; interorbital space broader than the upper 

 eyelid; tympanum very distinct, nearly as large as the eye. 



