FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 189 



when viewed from above, rounded in profile, the upper jaw projecting 

 somewhat beyond the lower; nostrils superolateral, projecting, their 

 distance from end of snout about half that from anterior border of 

 eye, separated from each other by an interval about equal to their 

 distance from eye. Canthus rostrahs rather well defined; loreal 

 region slightly concave. Eye moderate, not excessively prominent, 

 its diameter slightly greater than its distance from nostril; interorbital 

 diameter about equal to the width of upper eyelid, greater than space 

 between nostrils. Tympanum very distinct, about one-half the 

 diameter of the eye, separated from eye by a distance nearly equal to 

 its own diameter. Fingers one-half webbed, fourth considerably 

 longer than second, disk of third finger slightly exceeds the tympanic 

 area; no rudiment of a pollex visible; toes three-fourths webbed; 

 third sHghtly longer than fifth, disk of third toe practically equals the 

 tympanic area; a distinct projecting inner tubercle at base of first 

 toe, but no apparent outer metatarsal tubercle; body rather short 

 and broad, in the postaxillary region slightly exceeding the greatest 

 diameter of head; when hind leg is adpressed, heel reaches to nostril; 

 a heavy glandular ridge produced into a pair of distinct tubercles 

 on the heel, but no true dermal appendage; when limbs are laid along 

 the sides, knee and elbow touch; when hind legs are bent at right 

 angles to the body, heels greatly overlap. Skin of upper parts appar- 

 ently smooth but with several transverse or irregularly chevron- 

 shaped glandular ridges beginning across the snout and continuing 

 across the back and on femur and tibia, some of these ridges more 

 pronounced than others, but all accentuated with light pigment; 

 a few scattered pustules between these ridges on the back, becoming 

 more accentuated and lightly pigmented posteriorly; a heavy, wide 

 glandular ridge from eye above tympanum, ending above the shoulder; 

 skin of chin and throat very finely pustular, that of chest, belly, 

 posterior femur and anal region very heavily granular; a very strong 

 skinfold across the chest. A prominent external median vocal sac. 



Dimensions. — Head and body 40 mm.; head length 12.5 mm., 

 width 13 mm.; femur 19.5 mm.; tibia 20 mm.; foot 16.5 mm.; hand 

 12 mm. 



Mathematical analysis (in percentage of the total length) : 



