FROGS OF COLOMBIA — COCHRAN AND GOIN 19 



in D. lugubris; and in hahneli the light ventral reticulations are 

 confined to the posterior half of the abdomen and the dorsolateral 

 lines are much finer and sharper than in lugubris. 



While the first finger usually is slightly shorter than the second in 

 hahneli, both are equal in length in about 10 percent of the examples 

 at hand. 



The Putumayo frog (CNHM 61789) has a snout length equal to 1% 

 times the eye diameter, while the interorbital width is broader than 

 that of the upper eyelid. In his original description, Boulenger stated 

 that the snout and eye were equal in length and that the interorbital 

 width was greater than that of the upper eyelid. 



Apparently this species is the only one of the genus found east of 

 the Andes in Colombia, and the examples from Meta and Putumayo 

 seem to agree well with the description of Boulenger's type from 

 Yurimaguas, in northern Peru. More material from both countries 

 is needed to determine whether truly significant differences in bodily 

 proportions might warrant separation. Until more Putumayo speci- 

 mens are examined, it is not feasible to consider a separation on these 

 extremely variable characters. 



Specimens Examined 



COLOMBIA 



Meta: Cafio No. 2, near Camp 1, Macarena, and shore of Guayabero, USNM 

 144950-8; Guayabero River shore above El Refugio, USNM 144959-61; 

 Upper Giiejar and El Mico, in the Macarena, USNM 144962-7. 

 Putumayo: Umbria, CNHM 61789. 

 PERU: Orellana: Campo Santa Clara, USNM 127201, 127203-8; Domo 

 Santa Clara, USNM 127932. 



Dendrobates lugubris O. Schmidt 



Plate 2a-c 



1858. Dendrobates lugubris 0. Schmidt, p. 250, pi. 2, fig. 14 (type localities, New 

 Granada and Costa Rica, on road between Boca del Toro and Chiriqui 

 Volcano). — Boulenger, 1882a, p. 145. — Baumann, 1917, pp. 132, 134. — 

 Dunn, 1944c, p. 520. — Stebbins and Hendrickson, 1959, p. 502. — Gor- 

 ham, 1963, p. 25. 



1924. Phyllobates lugubris.— Dunn, 1924, p. 5.— Taylor, 1952, p. 639, fig. 10. 



Description. — USNM 146850, an adult from Mariquita, Tolima, 

 Colombia. Tongue very slender, slightly more than one-quarter as 

 wide as mouth opening, ovate, its posterior border free and unnotched; 

 snout nearly truncate at the tip when viewed from above, truncate 

 and sloping backwards in profile, the upper jaw extending well 

 beyond the lower. Nostrils lateral, slightly projecting, their distance 

 from end of snout about half their distance from eye. Canthus ros- 

 tralis rounded; loreal region flat, vertical, descending to the vertical 



