322 ^Ir. 0. A. Boukiigcr on neio 



inetntavsal tubercle smaller, much shorter than the inner foe. 

 Tibio-tarsal articulation reaciiing the eye or between the eye 

 and the tip of the snout (the tympanum or the eye in G. leuco- 

 vi^staa). Greyish brown abovCv with large and snail 

 symmetrical dark brown spots with a fine pale outline; the 

 first large spot begins between the eyes and is triangular with 

 the base turned forwards ; it is immediatelj' followed by a 

 second and by a third, each subtriangular or cordiform with 

 the point turned forwards ; a large oval spot on the lumbar 

 region ; a whitish line round the eye and tiie temporal 

 region ; limbs with spots and bars edged with lighter, as on 

 the body ; throat and belly brown, or much spotted with 

 brown. 



From snout to vent 37 mm. 



Four specimens from Efulen. 



Rappia pleurotcBnia. 



Nearly allied to Rappia nrgus, Peters, w-ltli a variety of 

 ■which it agrees very closely in the coloration. Likewise with 

 the tympanum hidden, the tibio-tarsal articulation reaching 

 the eye, and no fold across the throat, but distinguished by 

 the very short, quite rudimentary web between the fingers. 

 Dark purplish brown above, with scattered white dots; a 

 Avhite, black-edged streak on each side of the head and body, 

 meeting its fellow on the tip of the snout, bordering the 

 upper eyelid, widening on the side of the body, and terminating 

 more or less abruptly in advance of the groin ; a few small 

 black spots on the lateral streak ; upper surface of thighs 

 brown ; lower parts blight yellow. 



From snout to vent 31 mm. 



A single specimen from Zinia ; another had been previously 

 obtained by Mr. Bates on tlie Benito River. 



Hylamhates calcaratus. 



Vomerine teeth in two small rounded groups between the 

 choanffi. Head broader than long; snout rounded, nearly as long 

 as the eye ; canthus rostralis distinct ; loreal region concave ; 

 interorbital space as broad as the upper eyelid ; tympanum 

 very distinct, about two thirds the diameter of the eye. 

 Fingers rather short, much depressed, one-third to half webbed, 

 the tips dilated into large disks; toes three-fourths webbed., 

 the web reaching the disk of the fifth toe ; subarticular 

 tubercles strong ; a strong, feebly .comrressed, oval inner 

 metatarsal tubercle. Tibio-tarsal articulation reaching the 



