FROGS OF COLOMBIA — COCHRAN AND GOIN 9 



Dimensions. — Head and body, 45.5 mm.; head length, 9.5 mm.; 

 head width, 11 mm.; femur, 18.5 mm.; tibia, 19 mm.; foot, 19.5 mm.; 

 hand, 8 mm. 



Color in alcohol. — Dorsal skin uniform olive, the tips of the tubercles 

 and the webs between the toes wood brown; venter dull cinnamon to 

 wood brown, immaculate; edges of lips drab; some drab mottlings 

 between eye and shoidder below the glandular lines. 



Remarks. — This is the smallest species of the genus. The largest 

 individual known is the one described above. Dunn (1948) has given 

 a very adequate discussion of relationships of this group. He notes 

 the occurrence of this species in Rio Zulia, north of Cucuta in the 

 Department of Norte de Santander, as well as in Venezuela. Hno. 

 Nic6foro Maria (1958) has figured and described some specimens from 

 Astillero. 



Specimens Examined 

 COLOMBIA 



Norte de Santander: Astillero, MLS 270, 805-9, USNM 147122. 

 VENEZUELA: 15 km. west of El Mene, USNM 115819-20; Lagunillas, USNM 



115757-8; Rfo San Juan, USNM 115767-9; two km. west of Rosario, USNM 



115770-817; Zulia, USNM 128845-6. 



Pipa snethlageae Miiller 

 Plate 1g-i 



1914. Pipa snethlageae L. Miiller, 1914a, p. 102 (type locality, Utinga, near 

 Belem, Para, Brazil); 1914b, p. 507, figs. 1, 2; 1924, p. 293.— Barbour, 

 1923b, p. 4, pi. 2, fig. 2.— Neiden, 1923, p. 18.— Noble, 1925b, p. 1 — 

 Dunn, 1948, p. 9.— Gorham, 1963, p. 15.— Neill, 1964, p. 275. 



1914. Pipa americana forma nova(?) Minke, p. 419, pis. 2, 3. 



Description — WTN 2561, an adult from Leticia, Amazonas, Co- 

 lombia. Snout very short, bluntly rounded when viewed from above, 

 declivous in profile, the upper jaw extending somewhat beyond the 

 lower. Tentacles on snout restricted to a few short pointed tubercles, 

 and those at angles of mouth not longer than eye diameter. Nostrils 

 minute, slit-like, not projecting, located on front and near center of 

 snout. Canthus rostralis scarcely apparent, as the whole head is 

 flattened, and slopes out and then down to the upper lip. Eye very 

 small, dorsolateral in position and on front of head, its diameter 

 about one-fourth its distance from tip of snout; interorbital diameter 

 three times the distance between the nostrils; upper eyelid not ap- 

 parent. Tympanum concealed, indicated only by a deep depression 

 above angle of jaw. Fingers free, their tips with four small sharp 

 projections, without lateral ridges, first shorter than third, second the 

 longest, fourth shortest and reaching to base of penultimate phalanx 

 of third; no thumb pad present, and no palmar callus; metacarpal 

 tubercles poorly developed, very small. Toes pointed, completely 



