47 



fingers as large as the tympanum or smaller, of toes nearly 

 as large as those of fingers; first finger a little shorter than 

 second, which is shorter than fourth ; outer fingers webbed at 

 the base, first finger free; third and fifth toe equal in length; 

 toes broadly webbed, the web reaching the disks of third and 

 fifth, or nearly so far; two phalanges of fourth toe free; sub- 

 articular tubercles and an oval inner metatarsal tubercle rather 

 distinct; no outer metatarsal tubercle; the heel reaches between 

 eye and tip of snout; tibia a little more than half length of 

 head and body. 



Skin smooth above; a feeble fold above the tympanum, 

 and usually another across the chest; belly and lower surfaces 

 of thighs granular. 



Upper surface dark purplish brown, with white (in life yellow) 

 spots and streaks, or lighter brown, with the spots and streaks 

 pale brown or dirty white; there are three broad longitu- 

 dinal streaks on the back, one median, beginning between the 

 eyes or at the tip of the snout, and two lateral ones, be- 

 ginning on the canthus rostralis or the upper eyelid ; small 

 spots on the head and sometimes on the sides; a more or 

 less discontinuous streak at each side of the median one may 

 be present; sometimes a cross-bar on the rump, or another 

 between the eyes; upper surface of limbs pale brown with 

 light dots ;, yellowish white beneath. Length 27 mm. 



In young specimens the vomerine teeth are absent, the lateral 

 and sometimes the median dorsal streaks are broken up into 

 large spots and the light spots are sometimes more numerous. 



This species is probably based on young specimens of 

 H. impura. 



Habitat: New Guinea (Mamberamo riv. ! ; Sermowai riv., 

 + 70 m.!; Tami riv.!; Friedrich Wilhelmshafen ; Stephansort; 

 St. Joseph river district ; Lorentz riv. ! ; Setekwa riv.) ; Fer- 

 guson isl. '). 



25. Hyla genimaculata Horst. 



Hyla genimaculata Horst, Notes Leyden Mus., V, 1883, p. 240. 



Tongue oblong, very slightly nicked behind ; vomerine teeth 

 in two oblique series on a level with the posterior borders of 



1) Perhaps H. tkesaurensis ? 



