220 CTSTIGXATHID^. 



43. Hylodes sulcatus. 

 Hylodes sulcatus, Cope, Proc. Ac. Philad. 1874, p. 126. 



Tougue round, entire. Yomerine teeth in two short curved series 

 entirely behind the choante, and not extending outwards beyond 

 their middle. Head very wide ; a strong ridge extends along the 

 superciliary border to the posterior border of the cranium, enclosing 

 a groove with its fellow ; tympanum vertically oval, a little smaller 

 than the eye. Fingers very short, without disks ; toes with well- 

 marked disks. The bind limb being carried forwards along the 

 body, the tibio-tarsal articulation reaches the nostril. Skin of upper 

 surfaces rugose, with numerous short, generally symmetrical folds, 

 two of which cross the suprascapular region, two on the sides, two 

 on each side of the back, &c. ; belly granular. Deep brown above, 

 white below ; a pale spot below the interval between orbit and 

 tympanum ; limbs cross-barred ; femora pale, marbled behind. 



Nauta, Upper Amazon. 



44. Hylodes biporcatus. 



Strabomantis biporcatus, Peters, Mon. Berl. Ac. 1863, p. 405 ; Espada, 



A9i. Soc. Esp. i. p. 85. 

 Limnophys napeeus, E&pada, Jorn. Sc. Lisb. iii. p. 60. 



Tongue entire. Yomerine teeth in two arched series behind the 

 choanse. Head large, broad, with bony ridges ; canthus rostralis 

 distinct ; nostril equally distant from the eye and the tip of the 

 snout ; eyes obliquely directed forwards ; interorbital space deeply 

 concave, the edges of the fronto-parietals being prominent, ci'est- 

 like ; tympanum very distinct, a little smaller than the eye. First 

 finger longer than second : toes with a rudiment of web ; tips of 

 fingers, not of toes, slightly though distinctly dilated ; subarticular 

 tubercles very prominent ; two metatarsal tubercles, the inner 

 elongate, very prominent, the outer rounded and very small. The 

 hind limb being carried forwards along the body, the foot extends 

 beyond the tip of the snout. Skin smooth, minutely glandular ; a 

 few very small pointed warts on the upper eyelid ; belly granular. 

 Dark brown above, with a few black yellow-edged spots ; beneath 

 brown, dotted with yellow, or brown-and- white marbled. 



Veragua ; Ecuador. 



45. Hyloies cornutus. 



Limnophys cornutus, Espada, Jorn. Sc. Lisb. iii. p. 60. 

 Strabomantis cornutus,, Espada, An. Sue. Es}}. i. p. 85, and Vioj. Pacif., 

 VeHehr. pi. 3. f. 4. 



Tongue heart-shaped. Yomerine teeth in two arched series 

 behind the choanse. Head large, broad ; canthus rostralis distinct ; 

 interorbital space deeply concave, the edges of the fronto-parietals 



