258 U. S. NATIONAL MUSEUM BULLETIN 206 



quite long; subarticular tubercles distinct; a prominent oval inner and 

 a small round outer metatarsal tubercle; a very faint inner tarsal 

 ridge; body broadly elliptical in shape, m postaxillary region about 

 equal to greatest width of head; when hind leg is adpressed, heel 

 reaches slightly beyond anterior border of eye; when limbs are laid 

 along the sides, knee and elbow considerably overlap; when hind legs 

 are bent at right angles to body, heels touch. Skin of dorsum nearly 

 smooth, with a few scattered low glandules across the occiput and 

 above the shoulder; a weak glandular line above the tympanic region, 

 and a much heavier diagonal glandular fold ending above the upper 

 arm insertion; an extremely prominent, smooth, large, concave, 

 kidney-shaped inguinal gland, its edges standing out in a ridge above 

 the surromiding skin; ventral surfaces smooth except for some in- 

 distinct granules on the femur below the anus. No skinfold across the 

 chest. No apparent external vocal sac or thumb spines. 



Dimensions. — Head and body 43 mm.; head length 15 mm., width 

 19 mm.; femur 19 mm.; tibia 22 mm.; foot 21 mm.; hand 12 mm. 



Color in alcohol. — Dorsum deep seal brown, immaculate except for 

 some small round white spots on the side in front of inguinal disk and 

 a few others above and in front of shoulder, on edge of upper lip, 

 and at corner of mouth; an irregular row of slightly larger white spots 

 along the posterior femur, and a few white patches on the anterior 

 femur; hands and feet with a few light spots; ventral surface drab, 

 with a few paler dots along the sides, on the arms and chest, and below 

 the tibia; inguinal gland pale drab, spotted with white. 



Variations ■ — An example from Tijuca, USNM 96262, differs from 

 the Ouro Pr^to specimens in having a slightly longer snout and 

 shorter legs, with distinct light crossbars across the upper sm^face 

 of the femur This represents the form which A. Lutz designated as 

 variegata. The comparison of a large series from Rio de Janeiro with 

 topotypic examples from Alto da Serra, Sao Paulo, is needed to settle 

 the status of this form. Two adidt females from Ouro Preto lack 

 all traces of the inguinal gland. The smaller of these has a slight 

 indication of a light-edged interorbital line, and the spots on the 

 upper lip suggest the diagonal light bars found in the young specimens. 

 These latter are fully formed at 11 mm. The two females have the 

 adpressed heel reaching to the nostril. Fingers and toes are uniformly 

 long and delicate in all the specimens. The vomerine teeth are very 

 unequally developed, for in the described specimen they are small 

 and rather weak, while in one of the adult females they are extremely 

 heavy and nearly continuous in the center. 



Remarks. — At Ouro Pr6to all the specimens were found under mats 

 of vegetation overhanging a rocky ledge wetted by seepage from 

 springs. The frogs were secured by pulling down and shaking the 



