Mr. G. A. Boulenger on new Batrachians. 275 



brown streak on the thigh and some dark brown bars on the 

 leg and foot ; lower parts white. 



From snout to vent 20 millim. 



Two specimens from Santa Ines, N. of Medellin, Republic 

 of Colombia ; altitude 3800 feet. Collected by Mr. A. E. 

 Pratt. 



Dendrobates opisthomelas. (PI. XT. fig. 4.) 



Head a little longer than broad; snout rounded, feebly 

 prominent, shorter than the diameter of the orbit; loreal 

 region vertical; nostril equally distant from the eye and the 

 tip of the snout; interorbital space as broad as the upper 

 eyelid; tympanum distinct, about half the diameter of the 

 eye. Fingers moderate, first not extending so far as second ; 

 disks of fingers and toes small, much smaller than the tym- 

 panum ; two very feebly prominent small metatarsal tubercles, 

 and a very indistinct tubercle on the middle of the inner side 

 of the tarsus. Back covered with small flat warts. Head 

 and body lemon-yellow above, obscured with dark brown or 

 blackish on the coccygeal region, black round the vent ; arms 

 yellow, forearms, hands, and hind limbs blackish ; throat 

 and belly black, with white spots. 



From snout to vent 20 millim. 



Several specimens from Santa Ines, N. of Medellin, Re- 

 public of Colombia, altitude 3800 feet. Obtained by 

 Mr. A. E. Pratt under rotten wood, together with the types 

 of the preceding species. 



Microhyla leucostigma. (PI. XII. fig. 1.) 



Habit moderately slender. Snout rounded, shorter than 

 the diameter of the orbit ; interorbital space broader than the 

 upper eyelid. Fingers rather short, first much shorter than 

 second ; toes moderate, with a slight rudiment of web ; tips 

 of fingers and toes dilated into small but very distinct disks ; 

 subarticular and inner metatarsal tubercles flat, very feebly 

 prominent. Tibio-tarsal articulation reaching between the 

 eye and the tip of the snout. Skin smooth. Blackish 

 brown above, dotted all over with white; limbs dark brown, 

 with black cross-bars ; lower parts with large yellowish- 

 white spots separated by a blackish-brown network. 



From snout to vent 25 millim. 



Two specimens from Larut, Perak, 3000 feet. Presented 

 by Mr. S. S. Flower. 



Nearest allied to M, inornata, Blgr. 



21* 



