178 U. S. NATIONAL MUSEUM BULLETIN 206 



its own diameter. Fingers almost two-thirds webbed, fourth con- 

 siderably longer than second and reaching beyond base of disk of 

 third which just covers the tympanum; no projecting rudiment of a 

 poUex; a series of granular tubercles along outer forearm extending 

 onto hand and outer border of fourth finger; toes short, three-fourths 

 webbed, third and fifth subequal, disk of fourth slightly larger than 

 that of third finger, and more than covering the tympanum; a distinct 

 oval inner but no outer metatarsal tubercle; no true tarsal fold, instead 

 a series of heavy round glandules on outer part of tibia, and a partial 

 row of much smaller glandules paralleling it towards the inner part, 

 the outer row continued along outer border of foot and onto fourth 

 toe, giving a slightly serrate outline; a dermal fold across heel, set 

 with small glandular tubercles, and one or two larger tubercles in the 

 center. Head narrow, body elongate by contrast, in postaxHlary 

 region (of egg-bearing female) slightly wider than greatest width of 

 head; when hind leg is adpressed, heel reaches to center of eye; when 

 limbs are laid along the sides, knee and elbow fail to meet; when hind 

 legs are bent at right angles to body, heels slightly overlap. Skin of 

 upper parts smooth, except for a few small glandular tubercles on top 

 of head; a rather weak glandular ridge dotted with pustules encircling 

 upper border of tympanum and ending diagonally behind it. Skin of 

 chin and chest weakly granular, that of belly, posterior femur and 

 postanal region coarsely gi-anular. Axillary and inguinal membrane 

 unusually prominent. Traces of a slight skinfold across chest. This 

 specimen, a female, is greatly distended with eggs. (The male appears 

 to have a very large median vocal sac apparently inflatable laterally 

 as far as the tympanum. 



Dimensions. — Head and body 31 mm.; head length 8 mm., width 

 8 mm. ; femur 13 mm. ; tibia 15 mm. ; hind leg 42 mm. ; foreleg 19 mm. 



Color in alcohol. — Ground color light fawn above, lightening to pale 

 cream-buff on the sides; a wide, dark-bordered, sepia interorbital 

 mark; can thus rostralis with a sepia stripe and a few dark spots on 

 upper side of snout; a diagonal sepia bar across lip in front of eye; 

 upper lip pale cream with a small sepia spot on edge of lip just below 

 eye; a dark sepia stripe below tympanum fading out on shoulder; 

 anterior part of back and sides mottled irregularly with sepia; some 

 irregular vertical clove-brown markings very prominent in axilla and 

 groin, which regions were probably red or orange in life; a pair of large, 

 dull, dark spots on dorsolateral region, the first at midbody, the second 

 near beguuiing of sacral region; anterior and posterior femoral sur- 

 faces pale, immaculate (probably red in life), with a very dark 

 >-shaped clove-brown mark terminating this red area on the posterior 

 proximal surface of femur; a narrow band of the ground tone extend- 



