216 U. S. NATIONAL MUSEUM BULLETIN 206 



Pseudis fusca Garman 



Plate 32, Figures i-k 



1883. Pseudis fusca Garman, p. 47 (type locality, Rio Arassuahy, [Minas Gerais,] 

 Brazil).— NiEDEN, 1923, p. 366.— Miranda-Ribeiro, 1926, p. 26.— 

 Barbour and Loveridge, 1929, p. 324.— Mello-Leitao, 1937, p. 329. 



Description. — Male, MCZ 1872 (cotype), Rio Arrasuahy, Minas 

 Gerais. Vomerine teeth in two short, heavy, well-separated patches 

 between the choanae ; tongue slightly less than half as wide as mouth- 

 opening, broadly oval, not indented on its free posterior border; 

 snout bluntly rounded at the tip when seen from above and in profile, 

 the upper jaw projecting slightly beyond the lower; nostrils supero- 

 lateral, scarcely projecting, valvular, their distance from end of snout 

 about two-thirds their distance from eye, separated from each other 

 by an interval equal to their distance from eye. Canthus rostralis 

 rounded, indistinct; loreal region flat, sloping evenly downwards to 

 the upper lip border. Eye large, prominent, its diameter a little less 

 than its distance from end of snout; interorbital diameter slightly 

 greater than width of upper eyelid, a little greater than distance be- 

 tween the nostrils. Tympanum distinct, its gi'eatest diameter equal 

 to three-fourths the width of eye, separated from eye by a distance 

 equal to one- third its greatest diameter. Fingers long, free, their 

 tips not dilated, second finger opposed to others, longer than first 

 but much shorter than fourth; bases of all the fingers much swollen, 

 but having a few small metacarpal tubercles; subarticular tubercles 

 of fingers very distinct; an elongate pad on distal part of base of first 

 finger; toes fully webbed, their tips not dilated, third and fifth subequal, 

 reaching halfway on penultimate phalanx of fourth; a small but dis- 

 tinct spurlike inner metatarsal tubercle but no outer one; subartic- 

 ular tubercles of toes small but very distinct; a heavy curved inner 

 tarsal ridge extending from base of inner metatarsal tubercle almost 

 to heel; wide dermal fringes along the outer sides of first and fifth 

 toes. Body stout, in postaxillary region a little wider than the head. 

 When hind limb is adpressed, heel reaches well beyond tip of snout; 

 when limbs are laid along the sides, knee and elbow slightly overlap; 

 when hind legs are bent at right angles to body, heels are widely 

 separated. Skin of head, back, and legs nearly smooth, with a few 

 pustules at nape of neck and on femur; skin of sides below arm in- 

 sertion finely plicate; a distinct supra tympanic ridge; center of belly 

 with some faint granules, remainder of venter smooth. A transverse 

 skinfold across chest and another across throat. Internal slits on 

 either side of mouth back of tongue leading to the vocal sacs. 



Dimensions. — Head and body 53 mm.; head length 16.5 mm., 

 width 19.5 mm.; femur 32 mm.; tibia 27.5 mm.;_foot 26.5 mm.; hand 



