FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 



283 



third; first finger shorter than second; no pronounced pollex; a large 

 round palmar tubercle, and a smaller elongate one on base of first 

 finger; toes (described from USNM 96630) all slightly webbed; disks 

 of toes like those of fingers and similar in size; fifth toe shorter than 

 third, which extends to base of antepenultimate phalanx of fourth ; a 

 small but distinct inner metatarsal tubercle, and a very small round 

 outer one; subarticular tubercles of fingers and toes small, single, but 

 distinct; a heavy dermal fold on outer and inner tarsal region, and 

 dermal fringes on fingers and toes. When leg is straightened, a heavy 

 skinfold appears on the heel and knee. Body stout, in postaxillary 



Figure li.—Elosia aspera, USNM 97833: a, Dorsum; h, profile; both X 1. 



region a little wider than head; when hind leg is adpressed, heel 

 reaches to tip of snout; when limbs are laid along the sides, knee and 

 elbow greatly overlap; when hind legs are bent at right angles to 

 body, heels overlap. Skin of upper parts coarsely granular, with 

 large tubercles especially prominent along the sides of the body from 

 above tympanum to groin, on coccyx, and on posterior femoral ai*ea; 

 ventral sui'faces smooth; a heavy ridge along upper tympanum from 

 eyelid onto shoulder. A pair of lateral external vocal sacs that, when 

 deflated, form a loosely creased skin pocket just in front of each 

 shoulder. 



Dimensions. — Head and body 42 mm.; head length 15 mm., width 

 14 mm.; femur 21 mm.; tibia 22.5 mm.; foot 20 man.; hand 14 mm. 



Color in alcohol. — Above cinnamon brown with small darker brown 

 spots on the back, and wide, dark crossbai-s on the legs; tubercles 



