74 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



horny tip of the fingers, are ])lackish brown; heels just meeting when 

 hind legs are placed at right angles to axis of body; metatarsal tuber- 

 cles reaching posterior corner of eye when hind legs are placed forward 

 along the sides of the body; toes less than one-half webbed, the webs 

 being greatly excised and their edges sharply denticulate; inner meta- 

 tarsal tubercle prominent, oval, shorter than first toe, outer one large, 

 rounded, less prominent; the single subarticular tubercles, plantar 

 tubercular asperities, and tip of toes like those on the fore foot; skin 

 strongly tubercular, the tubercles on the back larger, more distant, 

 glandular, rounded, those on sides and limbs more prominent, almost 

 conical, all with a horny dark-brown tip, which on sides and limbs 

 becomes spinous. Color (in alcohol) , clay-colored above, more pure 

 pale ocher-yellow underneath, all the crests and nearly all the tips of 

 the tubercles dark brown, as are also the elevated fine vermiculations 

 on the surface of the parotoids; indistinct dusky spots and coarse 

 vermiculations on limbs, sides, throat, and breast. 



Dime7isions. 



mm. 



Tip of snout to vent 84 



Tip of snout to anterior l)order of t yinpanum 20 



Nostril to tympanum 16 



Internaral width 5 



Interorbital width 8. 5 



Longest diameter of tympanum '. . . 5. 5 



Width of head 31 



Fore leg 50 



Hind leg from vent to tip of longest toe 99 



Tibia 26 



Hind foot from base of inner metatarsal tubercle to tip of longest toe. 30 



Length of parotoid 20 



Width of parotoid 8 



The adult male appears to be smaller, U.S.N.M. No. 36499, measur- 

 ing only 61 mm. from snout to vent, but in proportions and otherwise 

 similar to the female, except that the webs between the toes are con- 

 siderably smaller, and the outer metatarsal tubercle is smaller than the 

 inner. It has also distinct traces of nuptial asperities on top of the 

 first finger, probably only remnants from the breeding season, during 

 which such excrescences are present on first and second fingers. A 

 small internal subgular sac, entrance slits to which are seen on each 

 side of the tongue. The dark color markings are somewhat more 

 distinct. 



A Jialfgrown specimen (Sci. Coll. No. 2Qe) measuring 46 mm. is very 

 similar, but the skin is much less rough except on hands and feet; the 

 interorbital space is flat, but all the cranial crests are plainly devel- 

 oped except the preauricular; the tips of the fingers are pale, and the 

 dusky brown spots and vermiculations on throat, chest, and anterior 

 portion of abdomen very strong and well defined; lips similarly 

 blotched with dark brown. 



