94 U.S. NATIONAL MUSEUM BULLETIN 2 88 



Description. — AMNH 1384, female paratype from Santa Rita Creek, 

 14 miles north of Mesopotamia, Antioquia, Colombia. Heavy bony 

 ridges on top of head beginning at prolonged tip of snout, diverging 

 to border inside of upper eyelid, dividing at posterior inner edge of 

 eyelid, the inner ridges converging and disappearing on the back above 

 the shoulders, the outer ridges bordering the eye behind transversely, 

 turning backwards at a right angle above tympanum, and continuing 

 as a series of sharp, conical tubercles along side of body to groin; 

 parotoid glands rather small, sub triangular; tongue very long 

 and slender, less than half as wide as mouth opening, ovate, its 

 posterior border free and slightly notched; snout pointed when viewed 

 from above and in profile, the upper jaw extending far beyond the 

 lower due to the elongate snout tip. Nostrils lateral, projecting, their 

 distance from end of snout equal to their distance from eye. Canthus 

 rostralis very sharp; loreal region concave, vertical, sloping a little to 

 meet the upper lip. Eye large prominent its diameter two-third its 

 distance from tip of snout; interorbital diameter 2% times that of 

 upper eyelid ; almost twice the interval between nostrils. Tympanum 

 hidden. Fingers one- third webbed, with lateral ridges, first finger 

 shorter than second, fourth longer than either, and reaching nearly 

 to penultimate phalanx of third; an oval thumb pad present; a round 

 palmar callus; metacarpal tubercles well developed, the proximal ones 

 divided. Toes short, three-fourth webbed, 3rd and 5th toes subequal, 

 their tips reaching to base of antepenultimate phalanx of 4th toe; 

 an oval inner metatarsal tubercle, and an outer one nearly equal to 

 it in size; an outer tarsal ridge bordered with conical tubercles; a 

 series of skinfolds on heel and knee; soles granular. Body stout, in 

 postaxillary region a little less than greatest width of head. When 

 hind leg is adpressed, heel reaches to angle of jaw; when limbs are laid 

 along the sides, knee and elbow are separated; when hind legs are bent 

 at right angles to body, heels are slightly separated. Skin of upper 

 parts with small granules and scattered larger conical tubercles, the 

 latter more apparent between shoulders, on sacrum, and on upper 

 limb surfaces; venter finely granular everywhere; no skinfold across 

 chest; no ventral disk; an external vocal sac in the male. 



Dimensions. — Head and body, 36.5 mm.; head length, 13 mm.; 

 head width, 13.5 mm.; femur, 13 mm.; tibia, 13.5 mm.; foot, 10 mm.; 

 hand, 9 mm. 



Color in alcohol (from Noble's original description of the type) — 

 Color above yellowish brown, indistinctly marked with darker brown, 

 forming crossbands on the legs; ventral surfaces yellowish white 

 reticulated with dark brown. 



Remarks. — In Noble's diagnosis, the type is said to have the fingers 

 one-third webbed and the toes three-fourths webbed. But Noble's 



