HYLA AMBOINENSIS. '239 



groups, commencing from the inner front edge of the 

 choanae. Fingers free , with very large disks , first finger 

 shorter than the second , its disk also smaller than that of 

 the others; toes broadly webbed, the membrane extending 

 to the disks, except at the fourth toe, whose distal pha- 

 lanx is only edged by a narrow fringe of the web; disks 

 somewhat smaller than those of the fore-limb. The hind 

 limb being carried forwards along the body, the heel 

 hardly reaching the tip of the snout. Skin of the upper 

 parts rough , with very prominent pyramidal tubercles and 

 warts; underside granulate. 



Colour: (spirit- specimen) above light brown, variegated 

 with dark on the limbs ; underside yellowish , with brown 

 patches on belly and limbs. 



Length from snout to vent 63 m.m. 



One adult specimen from Sumatra. (The young one, 

 mentioned by Tschudi , does not belong to this species but 

 I think it should be referred to the genus Nectophrijne). 



III. New species. 

 4. Hyla amhoinensis n. s. 



Head broad , with the snout rounded , once and a half 

 as long as the diameter of the eye ; loreal region oblique , 

 rounded; can thus rostralis indistinct; nostrils near the tip 

 of the snout; eyes prominent; the interorbital space a little 

 broader than the upper eyelid ; tympanum distinct , about 

 half the diameter of the eye ; a strong fold from the eye 

 above the tympanum to the shoulder. Tongue oval , slightly 

 notched and free behind; vomerine teeth in two small 

 groups in the middle between the choanae. Fingers broadly 

 webbed, the membrane reaching the disks at the outer- 

 side of the second and third, at the innerside of the 

 fourth finger; toes entirely webbed; disks nearly as large 

 as the tympanum. Hind limbs slender , being carried for- 

 wards along the body, the heel reaches beyond the tip of 



Notes from the Leyclen ]Museu.ixi, Vol. "V. 



