146 U- S. NATIONAL MUSEUM BULLETIN 206 



as wide as mouth-opening, oval, its posterior margin free and slightly- 

 indented; snout large, rather bluntly rounded in profile, acutely- 

 rounded when viewed from above, the upper jaw extending consid- 

 erably beyond the lower ; nostrils superolateral, projecting considerably, 

 their distance from end of snout about one-fourth that from eye, 

 separated from each other by an interval equal to about three-fifths 

 their distance from eye. Canthus rostrahs rounded, grading into the 

 concave, sloping loreal region. Eye large, prominent, its diameter less 

 than its distance from end of snout; interorbital diameter about 1% 

 times the width of upper eyelid, much greater than distance between 

 nostrils. Tjrmpanum very distinct, about two-fifths the diameter of 

 eye, separated from eye by an interval equal to its own diameter. 

 Fingers entirely free, fourth slightly longer than second, disk of third 

 finger covering the tympanum; no rudiment of a pollex visible; toes 

 less than one-third webbed, fifth slightly longer than third, disk of 

 fourth toe covering about three-fourths the tympanum; a distinct, 

 roimded inner and a smaller outer metatarsal tubercle; a dermal fold 

 across heel. Body slightly elongate, in postaxillary region less than 

 greatest diameter of head ; when hind leg is adpressed, heel reaches to 

 nostril; when limbs are laid along the sides, knee and elbow overlap; 

 when hind legs are bent at right angles to body, heels greatly overlap. 

 Skin of upper parts very finely glandular, with larger pustules in more 

 or less regular series, especially prominent on head and in sacral region ; 

 a wide but indistinct glandular ridge encircling upper part of tym- 

 panum; skin of throat and chest finely granular, that of belly and 

 lower femur more coarsely granular; a more or less apparent skinfold 

 across the chest. A pair of lateral external vocal sacs not very strongly 

 developed. 



Dimensions. — Head and body 22.5 mm.; head length 8 mm., width 

 7 mm.; femur 10.5 mm.; tibia 12 mm.; foot 8.5 mm.; hand 6 mm. 



Color in alcohol. — Ground color of upper parts ecru-drab; a seal- 

 brown crossband between the eyes, anteriorly prolonged slightly on 

 the middle of the forehead; an irregular, wide, seal-brown stripe leaving 

 the posterior corner of the eye, -widening above the shoulder, and with 

 its upper margin bowed upwards to approach the median dorsal area ; 

 this seal-brown stripe widens and intensifies in color and ends as a 

 postaxillary patch ; a dark seal-brown diagonal spot in front of groin, 

 its upper margins extending upwards and ending on the back; loreal 

 region only slightly darker than rest of head, which is suffused indis- 

 tinctly with pale chocolate; forearms with wide, brown crossbands, 

 upper arms spotted with brown; hind legs -with wide, prominent, 

 brown crossbands; anterior part of femur as well as groin bleached 

 white in alcohol; chin and throat reticulated -with olive, remainder of 

 ventral surface immaculate ohve-buff except for a very pale, chevron- 



