126 



Distinguished from Ph.pulclira by a stouter habit, a shorter 

 head, shorter and thicker digits with much stronger and very 

 prominent subarticular tubercles, hardly half webbed toes, and 

 by the presence, in the male, of a strong, tubercle-like rudi- 

 ment of pollex. 



Colour in life dark olive-brown above; an oblique yellow 

 line from the eye to the angle of the mouth; a pale olive- 

 yellow mark across fore-head, through the eyes, and down 

 the sides of the body to the thighs, this band minutely spotted 

 with dark brown, principally along the centre; a triangular 

 dark-centred pale mark on the anal region ; limbs with pale 

 cross-bands; throat of male dark brown, passing into yellow 

 on the breast; belly brown, spotted with whitish. The colour 

 is very changeable, passing to blackish or yellowish. From 

 snout to vent 34 mm. 



Lives in holes in trees, containing rain-water. The voice is 

 loud, flute-like. 



Habitat: Sumatra; Borneo. — Perak, from 900 m. upwards. 



10. Xenobatrachus Ptrs. & Dor. 



(Peters e Doria, Ann. Mus. Genova, XIII, 1878, p. 432). 

 Choanacantha v. Mehely, Termesz. Fiizetek, XXI, 1898, p. 175. 

 Xenorhina v. Mehely, Termesz. Fiizetek, XXIV, 1901, p. 231 (partim). 



Pupil circular or feebly horizontally elliptic. Tongue large, 

 entire or nicked, perfectly attached or free behind. One or 

 two large tooth-like processes behind each choane. A denti- 

 culated transverse dermal ridge across the palate, in front of 

 the pharynx, and sometimes a tubercle in front of it. Tym- 

 panum more or less distinct. Fingers and toes free, the tips 

 usually dilated. Outer metatarsals united. 



No procoracoids, clavicles or omosternum. Terminal pha- 

 langes T-shaped. 



The eggs are large and few, the development is thus pro- 

 bably direct. 



Distribution: New Guinea. 



Synopsis of the Species. 



A. One tooth-like process behind each choane. 



I. Snout nearly twice the diameter of the eye. ... I. X. rostratus p. 127. 

 II. Snout as long as the upper eyelid. 



1. The tarso-metatarsal articulation reaches the eye. 2. A', ocellatus p. 128. 



