442 U.S. NATIONAL MUSEUM BULLETIN 2 88 



posterior corner of eye above tympanpm, ending above shoulder; 

 a heavy skinfold across chest; traces of a ventral disk; a prominent 

 external vocal sac in the male, appearing as a U-shaped fold of skin 

 on the throat with lateral prolongations. 



Dimensions. — Plead and body, 23.5 mm.; head length, 8.5 mm.; 

 head width, 8.5 mm.; femur, 9 mm.; tibia, 9.5 mm.; foot, 6.5 mm.; 

 hand, 4 mm. 



Color in alcohol. — Dorsum primrose yellow, with very minute 

 gray dots all over, these being concentrated into a transverse bar 

 between the eyes, and a few widely scattered larger dots along the 

 midline and also towards the dorsolateral region; sides primrose 

 yellow with similar minute dots; venter maize yellow, the throat 

 and belly immaculate, the lower limbs with a few fine punctulations ; 

 side of head primrose yellow, immaculate except for some gray dots 

 on canthus and above tympanum; palms of hands and soles of feet 

 primrose yellow, the disks light gray below and dark gray above. 



Remarks. — The adpressed heel reaches the center of the eye in 

 half the examples at hand, and to the posterior border of the eye 

 in the remainder. The toes are webbed very slightly in 25 percent 

 of the examples, while the others have more than a "trace," with 

 about one-eighth of the fourth toe webbed. The venter is always 

 immaculate, but the dorsum is sometimes darker than in the de- 

 scribed specimen, with a broad median stripe of sepia or wood brown 

 from the dark interocular bar to end of body. This dark bar is often 

 bordered above by a white one. The toe and finger disks appear 

 nearly black in contrast to the paler tone of hands and feet. 



The best characters by which to recognize this species are the very 

 short hands and feet with pointed fingers and toes, of which the 

 entire terminal disk is dark gray, and the enormous U-shaped gular 

 pouch of the males, a character that is shared, however, with diastema. 



Specimens Examined 

 COLOMBIA 



Cauca: Gorgona Island, BM 1926.1.20.139-40, USNM 145124-36. 

 Valle: Lower Rio Calima, USNM 145081; Virology Field Station, Rio 

 Raposo, USNM 151396-8, 151400. 



Eleutlierodactylus cornutus cornutus (Jiminez de la Espada) 



Plate 59a-c 



1871. Limnophys cornutus Jiminez de la Espada, p. 60 (type locality, San 



Jose de Moti, Suno, Ecuador). 



1872. Strabomantis cornutus.— Jiminez de la Espada, 1872, p. 85; 1875, pi. 



3, figs. 4, 4a-c. 

 1882. Hylodes cornutus.— Boulenger, 1882a, p. 220.— Peracca, 1914, p. 107 — 



Nieden, 1923, p. 443. 

 1945. Lithodytes cornutus. — Anderson, 1945, p. 45. 



