BATRACHIANS FROM NEW GUINEA. 257 



Batrachia. 



1. Rana papua Less. 

 Six specimens. 



2. Hyla dolichopsis Cope. 

 Several specimens. 



3. ? Hyla impura Ptrs. & Dor. 



A great many specimens greatly varying in coloration. 



Tongue oval , nicked and free behind. Vomerine teeth in 

 two small oval patches between the choanae. Head as broad 

 as long, snout rounded, a little longer than the diameter 

 of the eye, canthus rostralis distinct, loreal region slightly 

 concave. Interorbital space broader than the upper eyelid ; 

 tympanum rather distinct, half the diameter of the eye. 

 Fingers webbed at the base , no projecting rudiment of 

 pollux, disks of fingers half as large as tympanum. Toes 

 nearly entirely webbed. Tibio-tarsal articulation reaches the 

 tip of the snout. 



Skin smooth , feebly granulated on the belly and the 

 underparts of the thighs. 



Leyden Museum, March 1897. 



EXPLANATION OF PLATE 6. 



Figs. 1 and la. Lygosoma tigrina, n. sp. (nat. size). 

 Figs. 2 and 2a. Lygosoma callistictum Ptrs. var. (nat. size). 

 Figs. 3, 3a and 36. Lygosoma emigrans Lidth, one of the 



typical specimens from the island of Soeraba (fig. 3 nat. 



size, 3a and 36 X 2). 



Notes from the Leyden Miuseum , "Vol. XVIII. 



17 



