G. A. ROULEVGER 



the upper eyelid; tympanum two liftlis the diameter of the eye. 

 Fingers rather long, free, with large disks (as large as the 

 t^^npanumì; toes half webbed, the disks a little smaller than 

 those of the lingers; inner metatarsal tubercle small, oval, feebly 

 prominent. The tibio-tarsal articulation reaches the eye. Skin 

 smooth, granular on the belly and under the thighs. Brown above 

 with or without small black spots; groin marbled with black 

 and yellow, upper surface of arm and thigh, and inner surface 

 of tibia more or less regularly barred with black and yellow; 

 lower parts brownish. Male with two black external gular vocal 

 sacs, and a small gular disk between them. 

 From snout to vent 54 millim. 



A male specimen from Punta Frailes , Fernando Po , and a 

 female from N'Djolè, French Congo. Also two young, with a ve- 

 stige of tail, fi'om Punta Frailes. 



This species is closely allied to the East African H. maculatus, 

 A. Dum., from which it is distinguished by the longer hind limbs 

 and the more developed digital disks. It bears some resemblance 

 to H. greshoffif Schilthuis, of which I have been able to examine 

 the type thanks to the kindness of Prof. Hubrecht, but it differs 

 in the free fingers and the half-w^ebbed toes. 



4o. Hylambates aubryi, A. Dum. 



Cameroon: Buea, 800-1200 m. 



46. Hylambates brevipes, sp. n. (PL II. fig. 4). 



Vomerine teeth forming a transverse, scarcely interrupted series 

 just behind the level of the choanae. Head once and one third as 

 broad as long; snout rounded, as long as the diameter of the eye; 

 interorbital space broader than the upper eyelid; tympanum two 

 thirds the diameter of the eye. Fingers rather short, barely one 

 fourth webbed, with large disks; toes half webbed, with large 

 disks; inner metatarsal tubercle strong, compressed, about two 

 thirds the length of the inner toe. The tibio-tarsal articulation 

 reaches the shoulder; tibia two fifths the length of head and 

 body. Skin granulate above and on the belly, smooth on the 

 throat. Bluish grey above, with lichen-like yellowish variegations 

 defining an hour-glass shaped area of the ground colour from the 

 interorbital region to about the second third of the back; sides 

 white, marbled with purplish brown; sides of thighs purplish 

 brown; lower parts white, throat and breast dotted with brown. 



