NATURAL SCIENCES OF PHILADELPHIA. 



127 



sides of the head from the orbit to the angle of the jaws is covered 

 with closely placed tubercles giving a rugose surface. 



Color, deep brown above, white below. Limbs crossbarred with 

 brown; femora pale, marbled behind. Lips without light border ; 

 a pale spot below the interval between orbit and tympanum. 



Length of head and body 



" of head to angle of jaws 



Width of head at angle of jaws 

 " of head at interorbital . 



Length of fore Ihnb 

 " of hind limb 

 " of foot . . 



" of tarsus 



M. 



.047 

 .016 



Mri 

 .004 

 .024 

 .075 

 .034 

 .014 



From Nauta. 

 Peters. 



Evidently allied to the Strabomantis biporcatus, 



Lithodytes conspicillatus, Gthr. Batrach, Brit. Mus , 92, Var. 



" Santarem, Brazil, No. 141." 

 Plectomantis rhodostima, sp. nov. 



General form ranoid, with oval head and full and truncate muz- 

 zle. The head of the extended hind limb reaches to the posterior 

 border of the orbit. T3'mpanum .66 the size of the eye, which 

 equals in terorbital width and length to nostril. Vomerine teeth, 

 in two short curved series, on a transverse line behind the nares, 

 and extending upwards as far as tlieir inner border. Their size 

 a little exceeds that of the ostia pharyngea. Tongue elongate 

 oval, largely free. Skin smooth above and below. Toes before 

 and behind, with well-marked dilatations, and without dermal 

 margins. Color, above uniform brown, below whitish ; muzzle 

 blackish to the orbits ; femora dark-brown behind. A rose-colored 

 spot in the groin, one on the superior face of the femur, two on 

 the inferior face of the tibia, and one on the superior face of the 

 tarsus. 



M. 



Length of head aud body 045 



" of head to angle of jaws 

 Width of head at angle of jaws 



' ' of head between orbits 

 Length of fore limb . 



" of hind limb 



" of hind foot . 



" of tarsus 



.014 

 .015 

 .004 

 .026 

 .OoO 

 .029 

 .012 



