FROGS OF SOUTHEASTERN BRAZIL — COCHRAN 235 



genera in body form and proportions are quite apparent after 

 examining a few specimens of each genus. 



Zachaenus parvulus is distinguished from either of the two species 

 of Craspedoglossa by its very loose lateral skin, which forms an axUlary 

 wing when the arm is placed at right angles to the body axis. No 

 such loose skin is apparent in Craspedoglossa. The femur and tibia 

 of parvulus are both significantly longer than those of Craspedoglossa. 



Unfortunately the type of Zachaenus roseus Cope, USNM 15126, 

 from Port Otway, Patagonia, is now macerated to a heap of fragments, 

 so that the relationships of this species must remain uncertaia until 

 more specimens can be taken at the type locality. 



Craspedoglossa stejnegeri (Noble) 



Plate 21, Figures f-h 



1924. Borborocoetes stejnegeri Noble, p. 68 (type locality, Organ Mountains, 

 Brazil, 1,500 m.). 



Description. — Redescription of male, USNM 52608 (type), Organ 

 Mountains, Rio de Janeiro. Vomerine teeth in two short but heavy, 

 narrowly separated patches behind the choanae; tongue one-half the 

 width of mouth-opening, rounded, slightly free posteriorly; snout short 

 and rounded when seen from above, sloping forwards to the lip border 

 when seen in profile, the upper jaw not projecting beyond the lower; 

 nostrils more lateral than dorsal, projecting, their distance from each 

 other about two-thirds the interorbital diameter, nearer to end of 

 snout than to eye. Canthus rostralis low, rounded; loreal region 

 concave, sloping. Eye small, anterolateral in position, with a sinuous 

 meniscus on upper border of pupil ; diameter of eye nearly equal to 

 its distance from end of snout; interorbital diameter l}i times the 

 width of the upper eyelid, a little greater than interval between nostrils. 

 Tympanum small, faintly visible under the skin, separated from eye 

 by a space equal to its own diameter. Fingers free, not dilated at the 

 tips, the inside of first and both sides of second and third with lateral 

 ridges of skin; first, second, and fourth subequal, reaching to base 

 of penultimate phalanx of third; a rather pronounced pad at base of 

 first finger; subarticular tubercles well developed on both hands and 

 feet; no lateral skinfold along sides of body; toes not dilated, free, but 

 with weak ridges of skin at least on the third, which is much longer 

 than the fifth; a prominent oval inner and a smaller, round outer 

 metatarsal tubercle; no tarsal ridge; body quite stout, in postaxUlary 

 region narrower than the very broad head; when hind leg is adpressed, 

 heel reaches to commissure of jaws; when limbs are laid along the 

 sides, knee and elbow just touch; when hind legs are laid at right angles 

 to body, heels meet. Skin of upper parts fairly smooth, except for a 



