170 On new Batrachians from Borneo. 
edge. Snout pointed, as long as the diameter of the orbit; 
nostril equally distant from the orbit and the end of the 
snout ; canthus rostralis angular; loreal region slightly con- 
cave; interorbital space broader than the upper eyelid ; 
tympanum distinct, one half or three fifths the diameter of 
the eye. Fingers webbed to the disks, which are nearly as 
large as the tympanum ; toes webbed to the disks, which are 
smaller than those of the fingers; subarticular and inner 
metatarsal tubercles very small; no tarsal fold. The tibio- 
tarsal articulation reaches the tip of the snout. Skin smooth 
above, granulate on the belly. Pale reddish brown above, 
minutely speckled with brown and with six brown cross- 
bands, the first across the snout, the second between the 
eyes, the third, broadest, between the ears; a fine yellow 
brown-edged line borders the head above, from the tip of the 
snout along the canthus rostralis and supraciliary border to 
above the tympanum; limbs with dark cross-bands; lower 
parts and hinder side of thighs colourless. Male with an 
internal vocal sac. 
From snout to vent 54 millim. 
Two specimens, male and female, from the mountains of 
the Akar River, North Sarawak. 
Rhacophorus nigropalmatus. 
Vomerine teeth in two long, slightly curved, transverse 
series between the front edges of the moderately large choane. 
Snout rounded, as long as the diameter of the orbit; nostril 
near the tip of the snout; canthus rostralis feeble; loreal 
region concave; interorbital space broader than the upper 
eyelid ; tympanum distinct, two thirds the diameter of the 
eye. Fingers webbed to the disks, which are smaller than 
the tympanum ; toes webbed to the disks, which are a little 
smaller than those of the fingers; subarticular and inner 
metatarsal tubercles very small. Tibio-tarsal articulation 
reaching the tip of the snout. Skin finely granulate above, 
coarsely on the belly; a strong dermal fold along the outer 
edge of the forearm and tarsus and at the heel. Purple above, 
finely speckled with black, and with scattered minute white 
dots; one or two small white spots on the upper surface of 
the femur; flanks white, veined with black; interdigital 
webs black at the base, grey veined with black towards the 
border ; lower parts white. 
From snout to vent 80 millim. 
A single female specimen from the Akar River. 
