394 U.S. NATIONAL MUSEUM BULLETIN 2 88 



slightly projecting, their distance from end of snout one-fourth their 

 distance from eye. Can thus rostralis straight, distinct; loreal region 

 concave, sloping outwards to the upper lip. Eye large, prominent, its 

 diameter nearly as great as its distance from tip of snout; interorbital 

 diameter equal to that of upper eyelid, a little greater than interval 

 between nostrils. Tympanum distinct, its greatest diameter one-half 

 that of eye, separated from eye by an interval equal to one-third its 

 own diameter. Fingers long, with slight lateral ridges, free, first finger 

 shorter than second, fourth longer than either, its tip extending to 

 base of disk of third, which covers two-thirds the tympanum; a small 

 oval thumb pad present; a bifid palmar callus; metacarpal tubercles 

 well developed. Toes long, not webbed, third toe shorter than fifth, 

 the disk of which reaches halfway along antepenultimate phalanx of 

 fourth ; disk of fourth toe one-half the tympanum, and a trifle smaller 

 than that of third finger; a small inner metatarsal tubercle and a 

 smaller outer one; no apparent tarsal ridge; a heavy skinfold on heel 

 and knee. Body elongate, in postaxillary region narrower than greatest 

 width of head. When hind leg is adpressed, heel reaches just beyond 

 tip of snout; when limbs are laid along the sides, knee and elbow 

 slightly overlap; when hind legs are bent at right angles to body, 

 heels overlap considerably. Skin of upper parts finely tubercular with 

 some larger tubercles on the shoulders and sacrum, and a pair on 

 top of snout; venter smooth anteriorly, very finely granular on center 

 and posterior belly and on lower proximal surfaces of femur; a heavy 

 glandular ridge from posterior corner of eye above tympanum, ending 

 above shoulder; a distinct skinfold across the chest; a ventral disk; a 

 pair of lateral external vocal sacs in the male. 



Dimensions. — Head and body, 42 mm.; head length, 15 mm.; head 

 width, 15.5 mm.; femur, 20 mm.; tibia, 23 mm.; foot, 18.5 mm.; 

 hand, 12 mm. 



Color in alcohol.' — Dorsum pale drab with a wide, faint sepia band 

 between the eyes; the tubercles on top of snout and those on shoulders 

 outlined with crescentic sepia markings; a weak sepia chevron across 

 lumbar region, and other nearly transverse bars on sacrum; canthus 

 rostralis with traces of a dark line; sides of head drab, the upper lip 

 with several small dark triangular spots, the posterior ones leading to 

 the eye; a larger dark spot behind tympanum; sides of body drab-gray, 

 with a few small dark spots following the diagonal rows of small 

 tubercles; limbs drab gray with three or four wide broken darker 

 crossbars; posterior femur drab; a sepia postanal patch; venter olive- 

 buff, the lower lip, center of throat and behy with many small pale 

 drab spots; palms of hands and soles of feet light fawn color, the 

 tubercles and disks fight gray. 



Remarks. — This variable and abundant species seems to be mostly 



