t29 



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.). 



Xenoj-hina bidens v. Kampen, Nova Guinea, IX, pt. i, 1909, p. 39. 

 Xenoihina bidens v. Kampen, Nova Guinea, IX, pt. 3, 1 91 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. I; Lorentz riv.!). 

 Indo-austratjan amphibia. 9 



