t2$ 



the width of the upper eyelid; tympanum nearly invisible, 

 not distinctly defined. Fingers slender, with swollen tips; toes 

 with small disks; first finger shorter than second, which is a 

 little shorter than fourth ; length of the fourth toe contained 

 about 3 times in the distance between the posterior border 

 of the eye and the vent; third toe extending beyond fifth; 

 subarticular and inner metatarsal tubercles feeble, no outer 

 metatarsal tubercle; the heel reaches the eye, the tarso-meta- 

 tarsal articulation far beyond the tip of the snout. 



Skin smooth, with small warts on the tip of the snout; a 

 strong fold above the tympanum and sometimes a fold between 

 the posterior borders of the upper eyelids. 



Brownish violet (in spirit) ; lips and lower surface, except 

 the throat, marbled with lighter; vent bordered with black. 

 Length 53 mm. 



Habitat: New Guinea (near Idenburg riv., 2400 m. ! ; summit 

 of the Hellwig mts., +2500 m. !). 



4. Xenobatrachus bidens (v. Kamp.). 



Xenorhina bidens v. Kampen, Nova Guinea, IX, pt. I, 1909, p. 39. 

 Xenorhina bide?is v. Kampen, Nova Guinea, IX, pt. 3, 191 3, p. 460. 



Habit stout. Tongue perfectly attached behind ; two tooth- 

 like processes behind each choane. Head broader than long; 

 snout pointed, projecting, longer than the upper eyelid ; canthus 

 rostralis rounded; loreal region oblique; nostril close to the 

 tip of the snout; interorbital space twice the width of the 

 upper eyelid ; tympanum feebly distinct, as large as the eye. 

 Fingers with slightly swollen tips, toes with small disks; first 

 finger shorter than second, which is a little shorter than fourth; 

 length of the fourth toe contained about 3 times in the 

 distance between the posterior border of the eye and the 

 vent; third toe longer than fifth; subarticular tubercles in- 

 distinct; inner metatarsal tubercle none or feeble, no outer 

 one; the heel reaches the shoulder or the eye, the tarso-meta- 

 tarsal articulation to between eye and tip of snout or beyond. 



Skin smooth; tip of the snout sometimes with small warts. 



Light brown above, uniform or with a few small black dots ; 

 a dark band along the canthus rostralis and some dark spots 

 on the lips and the limbs sometimes present; white beneath, 

 finely marbled with brown. Length 29 mm. 



The food consists of ants. 



Habitat: New Guinea (Digul riv.!; Lorentz riv.!). 

 Indo-australian amphibia. 9 



