388 U.S. NATIONAL MUSEUM BULLETIN 2 88 



fourth; disk of fourth toe covering about one-fourth the tympanum 

 and much smaller than that of third finger; a small but prominent 

 spadelike inner metatarsal tubercle and an indistinct, minute outer 

 one; no apparent tarsal ridge; a heavy skinfold on heel and knee. 

 Body slender, in postaxillary region narrower than greatest width of 

 head. When hind leg is adpressed, heel reaches beyond snout tip; 

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

 legs are bent at right angles to body, heels greatly overlap. Skin of 

 upper parts finely shagreened, with some short, weak, diagonal glandu- 

 lar ridges on shoulders and sacrum; a fine dorsolateral fold from 

 posterior corner of eye to groin; venter smooth except for many fine 

 transverse skinfolds across belly and some small granules in front of 

 groin and in latero ventral region; a very sharp glandular ridge from 

 posterior corner of eye above tympanum, ending above shoulder; 

 a heavy skinfold across chest; a distinct ventral disk; a pair of lateral 

 vocal sacs in the male. 



Dimensions.— Head and body, 40.5 mm.; head length, 16 mm.; 

 head width, 14 mm.; femur, 19.5 mm.; tibia, 24.5 mm.; foot, 18.5 mm.; 

 hand, 11 mm. 



Color in alcohol. — Dorsum fawn color, the dorsolateral lines em- 

 phasized by a narrow dark cinnamon line which begins at top of 

 snout and extends along canthus; a narrow cinnamon interorbital bar 

 and one or two cinnamon chevrons down center of back, the first 

 one on a level with the arm insertion ; upper limb surfaces fawn color, 

 with three wide but faint crossbars outlined with cinnamon on femur, 

 tibia, and foot and two rather indistinct bars on forearm; side of body 

 ecru drab, with some indistinct darker diagonal stripes; side of head 

 drab to russet, with some darker and lighter spots from eye to upper 

 lip; venter dull clay color, immaculate; posterior femur fawn color, 

 immaculate; soles of feet and palms of hands drab, the webs and disks 

 a little paler. 



Remarks. — ANSP 24393 from the same locality as the described 

 specimen resembles that specimen except that it has a dark W cen- 

 tered on its back and its posterior femur has a very fine network of 

 drab surrounding small paler dots. 



In the seven specimens at hand, the adpressed heel extends to the 

 nostril, to the tip of the snout, or to just beyond the snout. From one 

 to three very small heel tubercles may occur, or the heel may have 

 only some transverse ridges of skin. 



In the original description, the close relationship of this frog to 

 noblei was pointed out. It is also said to be allied to gollmeri, from 

 which it differs in having enlarged disks on the two outer fingers only, 

 in having a dorsolateral fold, and in its color. From noblei it differs in 

 its dorsal markings and in the presence of a dorsolateral fold, while it 



