247 



Rhacophorus Icucomystax Flower, Proc. Zool. Soc. London, 1899, p. 898, pi. 



LIX, figs. 3, 3« (with tadpole). 

 Rhacophorus kucomystax v. Kampen, Weber's Zool. Ergebn., Leiden, IV, 1907, 



p. 399 (with tadpole). 

 Rhacophorus hucomyslax Boulenger, Vert. Fauna Malay Penins. , Rept. and 



Batr., London, 1912, p. 248. 

 Rhacophorus maculatus leucomystax Annandale, Rec. Ind. Mus., VIII, 1912, p. 14. 



Vomerine teeth in two more or less oblique series between 

 the choanae, beginning close to the inner front edge of the 

 latter. Head as long as broad ; snout obtusely pointed, pro- 

 jecting, about as long as the upper eyelid; canthus rostralis 

 angular, straight; loreal region nearly vertical, concave; nostril 

 much nearer to end of snout than to eye; interorbital space in 

 adult specimens i'/ 2 to 2 times the width of the upper eye- 

 lid, narrower in the young; tympanum very distinct, 2 / 3 to 3 / 4 

 the diameter of the eye. Disks of fingers rather large, smaller 

 than the tympanum; disks of toes smaller than those of fingers ; 

 first finger shorter than second, which is much shorter than 

 fourth ; fingers with a slight rudiment of web, toes 2 / 3 webbed, 

 the web reaching the disks of 3d and 5th toe or nearly so 

 far; last two phalanges of 4th toe only included by a narrow 

 fringe; subarticular tubercles well developed; a small inner 

 metatarsal tubercle; a rudimentary outer metatarsal tubercle 

 rarely present '); the heel reaches at least the eye, sometimes 

 beyond the tip of the snout; tibia '/ 2 to 3 / 5 the length of 

 head and body. 



Skin co-ossified with the frontoparietalia, and, in older spe- 

 cimens, usually with the nasalia and paraquadrata (squamosa) 

 too (in very young specimens, up to about 35 mm. in length, 

 the skin is free from the skull) ; finely granulate above ; a fold 

 above the tympanum ; belly and lower surface of thighs coar- 

 sely granulate. 



Coloration very variable, even in the same individual. Upper 

 parts grey, yellow, bronze, brown, reddish, or greenish, usually 

 spotted or mottled with brown or black ; sometimes a black 

 streak from the temporal region backwards and a few dark 

 spots on the sides; edges of jaws white; limbs with dark 

 cross-bars; hinder side of thighs uniform or light-spotted; lower 

 parts white or buff, throat and breast sometimes with dark 

 vermiculation. From snout to vent 81 mm. 



Male with internal vocal sacs. 



1) In specimens from Saleyer and Timor. 



