460 U.S. NATIONAL MUSEUM BULLETIN 2 88 



1955, p. 291; 1956, p. 47.— Cochran, 1955, p. 310.— Gines, 1959, p. 114 — 

 Gans, 1960, p. 304.— Rivero, 1961, p. 40.— Gorham, 1963, p. 19. 

 1912. Leptodactylus longirostris (not of Boulenger). — Baumann, 1912, p. 93 (speci- 

 mens from the Organ Mountains, Rio de Janeiro). — Nieden, 1923, 

 p. 488 (part). 



Description. — USNM 147039, an adult from Florencia, Caqueta, 

 Colombia. Vomerine teeth in two heavy, transverse, nearly continuous 

 series behind the choanae; tongue three-fourths as wide as mouth 

 opening, cordiform, its posterior border free and deeply notched; 

 snout acuminate when viewed from above, rounded in profile, the 

 upper jaw extending well beyond the lower. Nostrils dorsolateral, 

 slightly projecting, their distance from end of snout nearly as great 

 as their distance from eye. Canthus rostralis distinct; loreal region 

 flat, sloping to the upper lip. Eye large, prominent, its diameter l)i 

 times its distance from tip of snout; interorbital diameter equal to 

 that of upper eyelid, equal to interval between nostrils. Tympanum 

 distinct, its greatest diameter two-thirds that of eye, separated from 

 eye by an interval equal to one-third its own diameter. Fingers mod- 

 erate, with slightly swollen tips and lateral ridges, free, first finger 

 longer than second and fourth, reaching to base of ultimate phalanx 

 of third; a small thumb pad present; a distinct palmar callus; meta- 

 carpal tubercles well developed. Toes long, with slightly swollen disks 

 and narrow fringes, third toe longer than fifth, its tip reaching to 

 base of antepenultimate phalanx of fourth; tarsus granular; a small 

 oval inner metatarsal tubercle and a smaller round outer one; no 

 tarsal ridge; a heavy skinfold on heel and knee. Body elongate, in 

 postaxillary region equal to greatest width of head. When hind leg 

 is adpressed, heel reaches anterior corner of eye; when limbs are laid 

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

 bent at right angles to body, heels overlap. Skin of upper parts finely 

 shagreened, with some heavier pustules on sacrum; a glandular 

 dorsolateral fold from posterior border of eye almost to anus; a lateral 

 glandular line from posterior tympanum to groin; venter smooth; a 

 heavy glandular ridge from posterior corner of eye above tympanum, 

 ending on shoulder; a skinfold across chest; a distinct ventral disk; 

 external vocal sacs in the male. 



Dimensions. — Head and body, 53 mm.; head length, 18 mm.; head 

 width, 17.5 mm.; femur, 21.5 mm.; tibia, 26.5 mm.; foot, 28.5 mm.; 

 hand, 11 mm. 



Color in alcohol.- — Dorsum chocolate; a darker reniform patch be- 

 tween upper eyelids and two or three irregular crescentic brown spots 

 along center of back; a clove brown stripe beginning at tip of snout, 

 widening on loreal region, and continuing along lower margin of each 

 dorsolateral fold, and another outlining the tympanic ridge; upper 



