420 U.S. NATIONAL MUSEUM BULLETIN 2SS 



diameter one-fourth that of eye, separated from eye by an interval 

 equal to 1% times its own diameter. Fingers long, the two outer ones 

 with very large truncate disks, with lateral ridges, free, first finger 

 much shorter than second, fourth longer than either, reaching to 

 base of disk of third, which covers an area twice that of tympanum; a 

 thick semilunar thumb pad present; no true palmar callus but three 

 small flat granules instead; metacarpal tubercles well developed. Toes 

 long, slightly webbed, third toe shorter than fifth, the disk of which 

 reaches to base of antepenultimate phalanx of fourth; disk of fourth 

 toe covering 1% times the area of tympanum and a little smaller 

 than disk of third finger; a small knob-like inner metatarsal tubercle, 

 and a minute granule in place of an outer one; a short but heavy tarsal 

 ridge, ending one-fourth the distance to the heel; a heavy skinfold on 

 heel and knee. Body elongate, in postaxillary region much narrower 

 than greatest width of head. When hind leg is adpressed, heel reaches 

 a point between eye and nostril; when limbs are laid along the sides, 

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

 body, heels overlap. Skin of upper parts covered with small pustules or 

 granules which are largest on sacrum above shoulders and on upper 

 eyelids; venter and lower surface of femur finely granular, the chest and 

 throat less so; a short, heavy glandular ridge from posterior corner of 

 eye above tympanum, ending behind tympanum, and a pair of heavy 

 ) (-shaped ridges from posterior eye to shoulder; a heavy skinfold 

 across the chest; no ventral disk. 



Dimensions. — Head and body, 55.5 mm.; head length, 20.5 mm.; 

 head width, 22 mm.; femur, 27 mm.; tibia, 28.5 mm.; foot, 27.5 mm.; 

 hand, 18.5 mm. 



Color in alcohol. — Dorsum ecru drab, with a wide seal brown bar 

 between the eyes, with three or four brown chevron-shaped bars from 

 above the shoulders to the sacrum, the last bar poorly defined; venter 

 cream buff, with large light drab reticulations from chest over entire 

 abdomen and lower surfaces of limbs; sides of body pale olive buff 

 with a few large irregular seal brown spots; upper surfaces of legs 

 with four or five wide brown crossbars continued onto the concealed 

 surfaces as dark reticulations; posterior femur dark with small light 

 spots; throat olive buff with a few pearl gray dots; side of head cream 

 buff with a darker area along the can thus and loreal region, and two 

 indistinct dark spots under the eye; palms of hands and soles of feet 

 olive buff, the tubercles and disks a little paler; groin and axilla dark 

 brown. All dorsal tubercles emphasized with a small clove brown dot. 



Remarks. — The British Museum very kindly loaned to us a cotype 

 (BM 98.4.28.109, from Cachabe, Ecuador) of Hylodes latidiscus 

 Boulenger, and when this cotype was compared with the above- 

 described specimen the similarities of the two frogs were apparent at 



