48 U. S. NATIONAL MUSEUM BULLETIN 2 06 



Color in alcohol. — The specimen has bleached to pale pinkish buff 

 above, turning to ochraceous on the head and on the lower surfaces. 

 In the axilla and groin are still traces of a richer cinnamon brown. 



Color in life. — From an unsigned sketch of the described specimen. 

 Dorsal ground color burnt umber to chocolate, the bony ridges on 

 head Ughter and more metallic; numerous coarse black spots along 

 the sides, a few in the niidlumbar region, some smaller ones along 

 outside of forearm and tibia; a black oblong spot on top of head 

 between eyes and an irregular dark spot behind each nostril; wrist 

 and upper part of finger disks dark seal brown; tarsus and toes 

 similar but lighter; iris raw umber, the pupil diamond shaped and 

 black; chin dull raw umber. 



In hfe, one specimen, USNM 97640, was metallicfgold above, with 

 a deep chocolate stripe on top of the head and another down the 

 center of the back. In alcohol, this specimen has now become burnt 

 umber, with scarcely a trace of the once-contrasting chocolate 

 marking. 



Variations. — The largest known frog of this species measures 85 

 mm. in head and body length. While the teeth in all listed specimens 

 are identical with those of the one described, the tongue in two frogs 

 is considerably less than three-fourths as wide as the mouth-opening, 

 almost circular, and with a very slight notch on its nearly attached 

 posterior border. The critical measurements are very stable in the 

 five specimens at hand, although there is considerable variation in 

 the size of finger disks and toe disks. The extended hind leg has the 

 heel reaching to either the anterior or posterior border of the eye. 

 The skin on the sides of the body is smooth or very minutely glandular 

 in all cases. A very distinct pattern of coarse, reticulating blotches 

 is to be seen on the back of USNM 97639, while on the lower part of 

 its sides the blotches are further set off by pale gray interstices. A 

 light gray stripe runs along the upper part of the femur, with its 

 anterior and posterior surfaces dark colored, while some irregular 

 dark blotches take the place of crossbands on the light upper part of 

 tibia and tarsus as well as on the forearm. The throat is dark in this 

 example, and heavy folds of dark skin at each side of the throat give 

 additional evidence of the presence of a pair of external vocal sacs in 

 the male. A large heart-shaped callosity is present on the much 

 swollen proximal phalanx of the first finger. The longitudinal dark 

 spot between the eyes, apparently characteristic of the species, is 

 especially prominent in this specimen. 



Remarks. — This species does not appear to be synonymous with 

 Boulenger's Corythomantis greeningi from "Brazil." The toes of 

 brunoi have shorter webs; the sides of the body in brunoi are nearly 



