FROGS OF COLOMBIA — COCHRAN AND GOIN 17 



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 touch; when hind 

 legs are bent at right angles to body, heels slightly overlap. Skin of 

 upper parts coarsely granular except on snout, which is nearly smooth; 

 venter smooth (pustular under the lens), with a few fine, irregular 

 glandular lines near the sides; a slight swelling behind eye, and a wide 

 glandular ridge from posterior corner of eye descending behind tym- 

 panum and ending above shoulder; no skinfold across the chest; no 

 ventral disk; apparently no external vocal sacs in the male. 



Dimensions. — Head and body, 27.5 mm.; head length, 8 mm.; head 

 width, 8.5 mm.; femur, 11 mm.; tibia, 12 mm.; foot, 10 mm.; hand, 

 7.5 mm. 



Color in alcohol. — Dorsum slate-black, a little lighter on top of head, 

 and with traces of a gray chevron mark in front of eyes; a small pearl 

 gray spot on upper proximal femur behind groin; a small round light 

 spot in axilla, continued on upper proximal surface of upper arm; 

 venter slate-black, with very indistinct indications of a coarse light 

 reticulation on belly, and a light stripe around edge of lower jaw; 

 posterior femur slate-black, unspotted; side of head slate-black, the 

 area along the upper jaw mouse gray; palms of hands and soles of 

 feet slate color, their tubercles and disks drab-gray. 



Remarks. — This new species apparently is allied to Dendrobates 

 hahneli, but it lacks the dorso-lateral light lines, while its first finger 

 is clearly longer than the second, and its adult size is larger, up to 

 27.5 millimeters. Although the possession of the long first finger places 

 D. ingeri with D. trivittatus in the key, the two are not closely related. 

 The new species has a much shorter hind leg and grows only half as 

 large. 



Dendrobates hahneli Boulenger 



Plate 5d-f 



1884. Dendrobates hahneli Boulenger, 1884a, p. 636, pi. 57, fig. 4 (type locality, 



Yurimaguas, Huallaga River, northern Peru) ; 1886, p. 412. 

 1952. Dendrobates p(ictus) hahneli. — B. Lutz, 1952, pp. 601, 613, figs. 3, 4. 



Description. — USNM 144965, an adult from the Macarena, on 

 the upper Giiejar and El Mico, Meta, Colombia. Tongue half as 

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

 snout truncate when viewed from above, slightly convex and sloping 

 backwards in profile, the upper jaw extending well beyond the lower. 

 Nostrils inferolateral, projecting, their distance from end of snout 

 about one-quarter their distance from eye. Canthus rostralis distinct; 

 loreal region flat, vertical, merging with the vertical upper lip. Eye 

 large, prominent, its diameter about 1% times its distance from tip 



