140 U. S. NATIONAL MUSEUM BULLETIN 2 06 



for a slight notch on its free posterior border; snout large, rounded 

 when viewed from above and in profile, the upper jaw extending 

 somewhat beyond the lower; nostrils superior, projecting, their dis- 

 tance from end of snout about half that to eye, separated from each 

 other by an interval equal to two-thirds their distance from eye. 

 Canthus rostralis not defined; loreal region flat and very oblique. 

 Eye large, prominent, its diameter equal to its distance from nostril; 

 interorbital diameter about l}i times the width of upper eyelid, 

 greater than distance between nostrils. Tympanum distinct, about 

 two-thirds the width of eye, separated from eye by an interval almost 

 equal to its own diameter. Fingers distinctly webbed at their base, 

 fourth slightly longer than second, but not reaching to disk of third 

 which covers one-half the tympanic area; no rudiment of a pollex 

 visible; toes three-fourths webbed, fifth very slightly longer than 

 third, disk of fourth toe covering a little less than half the tympanic 

 area; a distinct oval inner and a smaller but distinct, rounded outer 

 metatarsal tubercle; a faint suggestion of a glandular ridge along 

 inner side of tarsus; no dermal appendage on heel. Body heavy and 

 broad, in postaxillary region equal to greatest width of head. When 

 hind leg is adpressed, heel reaches to nostril; when limbs are laid along 

 the side, knee and elbow just touch; when hind legs are bent at right 

 angles to body, heels considerably overlap. Skin of upper parts 

 glandular with a finely pustular appearance especially on the lumbar 

 region; a pronounced glandular ridge encircling upper part of tym- 

 panum and ending above the shoulder; skin of throat and chest very 

 finely pustular, that of belly coarsely granular, that of lower proximal 

 femur very finely granular, the rest of the femur and tibia quite smooth 

 below; a skinfold across the chest. A pair of external lateral vocal 

 sacs. 



Dimensions. — Head and body 39 mm.; head length 14 mm., 

 width 14 mm. ; femur 17 mm. ; tibia 20 mm. ; foot 16 mm. ; hand 1 1 mm. 



Color in alcohol. — Ground color of upper parts smoke gray, becom- 

 ing pale drab on the limbs; an indistinct triangular mark composed 

 of slate-black dots between the eyes; a narrow irregular slate-black 

 line along canthus rostralis and another series of dark dots in linear 

 arrangement along upper lip ; several irregular spots with dark dotted 

 outlines on the back; an aggregation of dark dots on elbow and an- 

 other around wrist; posterior part of femur with a wide seal-brown 

 stripe enclosing numerous small round pale yellowish spots; some 

 wide, very indistinct slate crossbars on tibia and faint ones on tarsus 

 and foot; one or two irregular large buff spots in the groin, surrounded 

 by a slate border which merges gradually with the pale olive-gray 

 of the sides; entire ventral surface olive-bufT, with minute gray dots 

 around edge of lower jaw, on belly, and on lower surfaces of limbs. 



