FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 197 



posable, fourth shorter than third; disk of third covering the tympanic 

 area; base of first finger with a distinctly enlarged callosity; a distinct 

 glandular ridge from base of fourth finger to elbow and another on top 

 of forearm; toes one-third webbed, first shorter than second, disk of 

 third covering the tympanic area ; a distinct heavy inner but no outer 

 metatarsal tubercle; a very faint ridge on top of tarsus, continued on 

 outside of tibia; a heavy outer tarsal ridge begimiing near disk of 

 fifth toe, edging the heel in a large triangular dermal appendage, and 

 continuing much reduced along inside of tibia; a very slight glandular 

 ridge in front of anus. Body moderately elongate, the width of the 

 head contained slightly more than 2% times in distance from tip of 

 snout to coccyx; when hind hmbs are adpressed, heel reaches to 

 anterior corner of eye; when limbs are laid along the sides, knee and 

 elbow overlap; when hind legs are bent at right angles to the body, 

 heels considerably overlap. Skin of upper parts faintly shagreened; 

 no dorsolateral ridge; skin of throat slightly granular, that of chest, 

 belly, and lower femur heavily granular, with some large, heavy 

 glandules in the postanal region. No apparent skinfold across the 

 chest. No external vocal sac. A roughened dark excrescence on 

 callosity at base of first finger. 



Dimensions. — Head and body 35 mm.; head length 11.5 mm., width 

 12.5 mm.; femur 16 mm.; tibia 17 mm.; foot 13 mm.; hand 10 mm. 

 (the forearm is tremendously overdeveloped in comparison to the 

 weak, slender upper arm, and thus it is rather difficult to extend this 

 limb to its full length in a stiffened alcohoHc specimen) . 



Color in alcohol. — Upper parts of head and body dull Indian purple, 

 becoming fighter posteriorly, a sharply defined area of this same color 

 on outer part of hand and forearm between the glandular ridges, and 

 similar areas of color from knee to outer toe; thick skin of upper lip 

 and side of head, including edge of upper eyehd and tympanic region, 

 as well as sides of body, whitish cream; ventral surfaces and entire 

 tibia pale vinaceous-pink. 



Color in life. — A colored sketch of this same specimen, made by 

 Paul Sandig probably shortly after it was preserved, shows the upper 

 surfaces dull indigo, with the exception of the whitish cream upper 

 arm, femur, fingers, and toes. The ventral surfaces are immaculate 

 whitish cream. 



Variations. — An adult specimen, USNM 96447, from Teresopolis, 

 Rio de Janeiro, has the tongue scarcely emarginate posteriorly, show- 

 ing how unstable is this condition in the species, since the described 

 specimen shows a very deep notch; snout in profile slopes upward and 

 backward from the mouth, and its vertical condition in the cotype 

 may be the result of an injury. While the webs are almost identical 

 in the two frogs, the disks of toes and fingers appear somewhat smaller 



