102 U. S. NATIONAL MUSEUM BULLETIN 206 



inner side of tarsus near heel ; no dermal appendage on heel ; body not 

 elongate, in the postaxillary region about equal to the greatest diam- 

 eter of head; when hind leg is adpressed, heel reaches end of snout; 

 when limbs are laid along the sides, knee and elbow touch; when hind 

 legs are bent at right angles to body, heels considerably overlap. 

 Skin of upper parts very finely granular or pustular; no very pro- 

 nounced glandular ridge encircling upper part of tympanum; skin of 

 throat and chest entirely smooth, that of belly finely granular, that of 

 posterior femur and anal region very coarsely granular; a more or less 

 apparent skin fold across the chest. A prominent external median 

 vocal sac. 



Dimensions. — Head and body 24.5 mm.; head length 8 mm., ^ndth 

 8.5 mm.; femur 12 mm.; tibia 12.5 mm.; foot 10 mm.; hand 7 mm. 



Color in alcohol. — Upper parts of head and back fawn color, of femur 

 and concealed surfaces of tarsus pale straw color, of remainder of upper 

 surfaces of limbs pinkish vinaceous. A seal-brown triangular mark in 

 the middle of the back, and some smaller irregular brown markings 

 anterior and posterior to it. Side of head with a very characteristic 

 alveolar pattern of Indian purple surrounding pale straw-colored spots ; 

 this pattern becoming paler below the brown line which leads from 

 posterior eye over tympanum and half way to groin. No markings 

 whatever on the femur. Tibia with four narrow brown crossbands, 

 knee with a similarly colored cap, and heel and outer border of tarsus 

 and metatarsus with a regular brown stripe. A few narrow cross- 

 bands on forearm. Anus bordered above by a crescentic brown mark. 

 Ventral surfaces pale chrome yeUow fading to pale cream color on 

 tibia and foot. 



Color in life. — From sketch by author, made from one in the series 

 containing the specimen just described. Dorsal ground color buff, 

 with irregular dark-edged heliotrope purple spots; side of head and 

 body light buff v,^ith an areolated pattern of curved maroon lines leav- 

 ing the buff ground color showing through in regular circles of different 

 sizes; lower part of sides and belly, also forearm and chest citron 

 yellow; gular region orpiment orange; femoral surface bright orange 

 chrome; a dark anal patch. The iris is chrome yellow next to the 

 pupil, becoming spotted with crimson, and finally solid maroon at the 

 periphery. The black pupil is transversely elliptic. 



In two sketches by Sandig of specimens presumably from near the 

 city of Rio de Janeiro the dorsal body color is ecru-drab in one indi- 

 vidual, orange-rufous in another, both having dark-outlined olive 

 spots on the back. The hand is sulphur yellow above and below. 

 The upper and lower surfaces of the foot are suffused mth orange, the 

 webs being paler and the disks darker orange. The tibia, foot, and 



