2l8 



interorbital space as broad as the upper eyelid ; tympanum 

 very distinct, 3 / i to nearly equal to the width of the eye. 

 Disks of third and fourth finger large, l /a to 2 / 3 diameter of 

 tympanum, of first and second finger and of toes smaller; 

 disks of second finger elliptic (longer than broad); second finger 

 as long as or extending hardly beyond first, shorter than fourth; 

 fifth toe longer than third ; toes nearly entirely webbed, two 

 phalanges of fourth one free ; outer metatarsals separated nearly 

 to the base; subarticular tubercles well developed; a small 

 oval inner and a still smaller, sometimes 'indistinct, round 

 outer metatarsal tubercle ; the heel reaches between eye and 

 tip of snout, to the tip of the snout or a little beyond ; tibia 

 more than half length of head and body; when the hind limbs 

 are folded at right angles to the body, the heels are strongly 

 overlapping. 



Finely granulate above; a dorsolateral fold of variable width, 

 but usually rather broad ; a fold from below the eye to the 

 shoulder, followed by a glandule ; back and sides often with 

 some large warts; belly and lower surface of thighs often granular. 



Brown above, the warts and glandular folds often somewhat 

 darker; white beneath, throat sometimes marbled with brown; 

 tympanum brown; upper lip and the glandule behind each 

 mouth-edge white; hind limbs sometimes indistinctly cross- 

 barred. Length 68 mm. 



Distinguished from the nearly allied R. labialis, with which 

 it probably has been often confounded, by shape and size of 

 the disk of the second finger and usually by a broader and 

 more distinct dorsolateral fold; from R. liosii it is distinguished 

 by the less extensively webbed toes, shorter legs and also the 

 more developed dorsolateral folds. The specimens in the Museum 

 at Leiden, on which Schlegel has founded his species, partly 

 belong to R. hosii, and it is a specimen of this species, which 

 has been figured by him on his pi. IX. 



Lives on the leaves of shrubs. The eggs are laid in a mass 

 of mucilage, forming a sort of nest out of the water (Sarasin). 



Tadpole. — Length of body i '/ 3 to i 2 / 3 times its width, 

 tail i '/ 2 to nearly 2 times as long as the body, about 3 to 5 

 times as long as deep. Nostril about equally distant from eye 

 and tip of snout; eyes superior, in the middle between tip 

 of snout and spiraculum, the distance between them greater 

 than that between the nostrils, about 1 to i'/ 2 times the width 



