igi7-] N. Annandale: Reptiles and Batrachians. 109 



in tlie broader interorbital space and narrower web to the 

 toes. The colouration is also strikingly different. The back 

 is pinkish buff with sparsely scattered small round black spots 

 and with a faint pale middorsal line extending forwards from 

 the vent about half way to the shoulders. The sides of the 

 head and the anterior half of the body are black, but both 

 lips are white, the white area 011 the upper lip extends 

 backwards as a broad line as far as the axilla and there is a 

 narrow white line running forwards from the upper eyelid 

 to the tip of the snout. The sides of the posterior half of 

 the body are a little darker than the back and bear numerous 

 black spots: the area thus coloured is separated from the 

 dorsal surface by a thin black line. The fore limbs are pale 

 with indistinct dark spots of small size, but the hind limbs 

 are darker than the back and are marked with incomplete 

 dark cross-bars. A thin black line extends along the middle 

 of the upper surface of the thigh and behind it the skin is 

 spotted. The whole of the ventral surface is unpigmented. 



A specimen of K. nicobariensis from the Jalor Caves, neai 

 Biserat in Peninsular Siam on the other hand, agrees fairly 

 well with the types of the species. 



Genus Ixalus, d. & n. 



Stejneger" has shown that in the strict 1< tter of the law 

 the name of this genus should be Philautus, Gistel. Four 

 species have been recorded from Java, namely flavosignatus 

 (Boettger), aurifasciatus (Schlegel), vittigera (Boulenger) and 

 pallidipes (Barbour). After some doubt I have decided that 

 ih I. hi;' series of specimens in Mr. Robinson's collection 

 all represent the second of these. 



Ixalus aurifasciatus (Schlegel). 



1^44. Hyla aurifasciata, Schlegel. Abbild., p. 27, pi. ix., 

 fig. 4. 



1882. Ixalus aurifasciatus, Boulenger, Cat. Batr. Sal. 



B. M., p. 100. 



Schlegel's figure gives a very good idea of the facies and 

 proportions, but it is evident from the specimens before me 

 that the colouration is almost as variable as in /. variabilis 

 from Ceylon and South India. None of these specimens 

 happen to bear the golden band across the forehead from 

 which the specific name is derived. There are two large 

 specimens (snout to vent 27 mm.) of very remarkable 

 colouration. In one the whole of the dorsal surface is black, 

 with irregular yellow streaks which converge inwards from 

 the sides. In the other the colours are the same but the 

 yellow predominates over the black. There seems to be no 

 vocal sac in the adult male. 



I [] ,.„ |) 



1917. j 



