484 U.S. NATIONAL MUSEUM BULLETIN 2 88 



1869. Lystris brachyops Cope, p. 312 (type locality, Magdalena River, New 

 Granada) . 



1877. Pleurodema sachsi Peters, p. 460 (type locality, San Fernando de Apure, 

 Venezuela) . 



1882. Paludicola brachyops.— Boulenger, 1882a, p. 232, fig. f — F. Muller, 1884, 

 p. 281.— Boettger, 1892, p. 30; 1893, p. 40.— Andersson, 1906, p. 8 — 

 Meek, 1910, p. 415. 



1922. Pleurodema brachyops.— Ruthven, 1922, p. 53. — Nieden, 1923, p. 499 — 

 Miranda- Ribeiro, 1926, pp. 156, 221.— A. Lutz, 1927, pp. 39, 46, p 1.12, 

 fig. 23.— Crawford, 1931, p. 31.— Schmidt, 1932, p. 160.— Parker, 1935, 

 p. 507. — Schubart, 1939, p. 55. — Dunn, 1944c, p. 511. — Brongersma, 

 1948, pp. 89, 92, fig. 31.— Gin&3, 1959, p. 116.— Rivero, 1961, p. 88; 

 1964b, p. 311.— Gorham, 1963, p. 20. 



1933. Paludicola sachsi. — Stejneger, 1933, p. 48. 



Description. — USNM 117514, an adult male from Rio Cesar, At- 

 lantico, Colombia. Vomerine teeth in two small, oval, widely separated 

 series between the choanae; tongue large, two-thirds as wide as mouth 

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

 snout broadly rounded when viewed from above, truncate in profile 

 and nearly vertical, the upper jaw extending well beyond the lower. 

 Nostrils more lateral than dorsal, scarcely projecting, their distance 

 from end of snout one-half their distance from eye. Canthus rostralis 

 blunt; loreal region slightly concave, sloping outward to upper lip. 

 Eye large, prominent, its diameter 1% times its distance from tip of 

 snout; interorbital diameter two-thirds that of upper eyelid and a 

 little less than interval between nostrils. Tympanum large, distinct, 

 its greatest diameter three-fifths that of eye, separated from eye by an 

 interval equal to one-half its own diameter. Fingers long, slender, their 

 tips not enlarged, with lateral ridges, free, first finger much longer 

 than second or fourth, its tip reaching halfway on penultimate phalanx 

 of third; a prominent oval thumb pad present; a larger palmar callus; 

 metacarpal tubercles well developed. Toes long, webbed at base, their 

 tips not enlarged, third finger longer than fifth, its tip reaching to 

 middle of antepenultimate phalanx of fourth; a small, shovel-like 

 inner metatarsal tubercle, and a larger semicircular outer one; a 

 narrow tarsal ridge ending diagonally near heel; a distinct skinfold 

 on heel and knee. Body stout, in postaxillary region a little narrower 

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

 posterior corner of eye; when limbs are laid along the sides, knee and 

 elbow just touch; when hind legs are bent at right angles to body, 

 heels are widely separated. Skin of upper parts smooth (pustular 

 under the lens), with a long glandular dorsolateral ridge from eye to 

 groin and a shorter one above and behind the tumpanum; a large oval 

 gland on flank in front of groin; venter smooth (faintly pustular under 

 lens) except for small granules below vent and along posterior femur; 



