140 U.S. NATIONAL MUSEUM BULLETIN 288 



Remarks. — The specimens examined are dark brown to blackish 

 slate above except USNM 123560 (see Plate 22j) which has a dorsal 

 pattern of striking large black and white (yellow in life) spots. In all 

 other respects USNM 123560 resembles the other specimens from 

 Magdalena. 



In the critical measurements, variation is not great, even considering 

 the fact that the series examined consists of only 11 examples. 



Specimens Examined 

 COLOMBIA 



Magdalena: Don Diego, MCZ 4100; Mamancanaca Valley, 10,900 ft., 

 USNM 118725-6; AMNH 50965-7; Paramo de Surubaka, 4,000 m., and 

 glaciers, 4,800 m., Sierra Nevada de Santa Marta, Uscategni, USNM 145744- 

 5; Rio Guatapuri, Sierra Nevada de Santa Marta, USNM 123560-2. 



Atelopus varius glyphus Dunn 



Plate 21a-c 



1931. Atelopus varius glyphus Dunn, p. 396 (type locality, Pirri Range, near 

 head of Rio Lim6n, Dari£n, Panama). — Breder, 1946, p. 409. 



Description. — USNM 50230 (holotype), an adult male from the 

 Pirri Range near the head of Rio Lim6n, Darien Province, Panama. 

 Head a little longer than broad. Tongue small, one- third as wide as 

 mouth opening, oval, its posterior border free and unnotched; snout 

 moderate, squarely truncate when viewed from above, straight 

 and nearly vertical in profile, the upper jaw extending considerably 

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

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

 distinct; loreal region vertical concave, merging with the nearly 

 vertical upper lip. Eye large, prominent, its diameter three-fourths 

 its distance from tip of snout; interorbital diameter 1% times that 

 of upper eye lid, a little greater than interval between nostrils. Fingers 

 long, their tips swollen into small disks, webbed at base, with faint 

 lateral ridges, first finger very small but distinct, reaching penulti- 

 mate phalanx of second, fourth longer than second, reaching half- 

 way on antepenultimate phalanx of third; thumb pad and palmar 

 callus very faint; metacarpal tubercles not developed. Toes moderate, 

 first toe small but distinct, third a trifle longer than fifth, its disk 

 reaching a little distance along antepenultimate phalanx of fourth, 

 first and second entirely webbed, third to fifth one-half webbed, with 

 last three phalanges of fourth free; toes scarcely swollen into disks; a 

 small blunt oval inner metatarsal tubercle and a smaller round 

 outer one; subarticular tubercles of toes single, weakly developed; 

 no true tarsal ridge; a distinct skinfold on heel and knee. Body elon- 

 gate, in postaxillary region a little narrower than greatest width of 



