1885.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 211 



end of the vent. They are also fnlly as lon^ as the same limbs of a 

 specimen of A. pmictaium that measures from snout to the end of the 

 vent three-fourths of an inch more than the specimen I am describing. 

 The toes are nuich like those of A %m«(m, perhaps not so broad, while 

 they are not so slender as those of a specimen of A. punctatum now be- 

 fore me. They are provided with a narrow marginal and basal mem- 

 brane. There are two distinct plantar tubercles. 



Measurements. 



Length: Inches. Lines. 



From snout to end of tail 5' 8 



From snout to gular fold 8.5 



From snout to line joining axillae 1 1.5 



From snout to groin 2 3 



From snout to end of vent 3 



From end of vent to tip of tail 2 8 



From axilla to groin 1 1.5 



From groin to end of vent 8. 5 



Width of head at angle of jaw 7. 5 



Distance between anterior canthi 4. 6 



Interorbital space 3. 25 



Greatest height of the t ail 5 



Thickness of tail at highest point 2 



Length of whole fore-leg 11 



Lower arm ajid hand 7. 5 



Length of third finger 2. 5 



Hinder limb, total length 1 0.05 



Lower leg and foot 9 



Free portion fourth toe 3 



Expanse of outstretched hinder limbs 2 5 



Distance between external nares 2.6 



Distance between inner nares 3.6 



Proportional dimensions. 



Times. 

 Muzzle to gular fold : 



In distance from snout to groin , 3.2 



In distance to end of vent (nearly) 4.2 



Fore-arm and foot : • 



In distance to groin 3. 6 



In distance to end of vent 4.7 



Lower leg and foot : 



In distance to groin 3 



' In distance to end of vent 4 



Width of head : 



In distance to groin 3. 6 



The color is dark brown, almost black, above, brownish-yellow below. 

 Between the fore and hind legs the light color of the belly mounts up 

 on the sides to a level with the upper surfaces of the limbs. The mid- 

 dle of the belly is of a duskier hue than its sides. Pectoral, inguinal, 

 and pubic regions slightly brighter yellow than the sides of the belly. 

 Head above like the back, below like the other lower parts. Just 



