FROGS OF COLOMBIA — COCHRAN AND GOIN 135 



faded.) Dorsum cinnamon, with a white (yellow) dorsolateral stripe 

 beginning at snout tip, continuing on canthus, upper eyelid, above 

 tympanic area and merging with a white inguinal spot; this light 

 stripe bordered above and below by clove brown stripes, the lower 

 brown stripe wide, covering nearly half the side between axilla and 

 groin; a less distinct and somewhat broken dark brown stripe on either 

 side of midline from snout to anus; upper surface of legs and arms fawn 

 color with a network of dark irregular lines not forming real cross- 

 bars; anterior and posterior femur buff, unspotted; venter immaculate 

 cream-buff; side of head clove brown in loreal region, the upper lip 

 white, this tone sharply divided from the loreal color; palms and soles 

 immaculate cream-buff. 



Remarks. — Some individuals are a little darker or lighter than 

 ANSP 23177, described above; however, there is great uniformity in 

 the pattern elements, as practically all examples at hand show the 

 white dorsolateral stripe edged with dark brown stripes above and 

 below, as well as the more or less irregular dark broken stripes on 

 either side of the midline. The venter is immaculate in all specimens. 

 Variations in the critical measurements are normal. 



Specimens Examined 

 COLOMBIA 



Cauca: Gorgona Island, USNM 52401 (cotype of Atelopus gracilis Barbour), 

 118219, 145132, 145134-230, AMNH 49802-11, 50973-82, ANSP 23176-7; 

 MLS 173. 

 ECUADOR: Solidero, MCZ 2615, 7605. 



Atelopus longibrachius Rivero 



Plate 22a-c 



1963. Atelopus longibrachius Rivero, p. 112, pi. 1, fig. 8 (type locality, El Tambo, 

 Giiisito, Cauca, Colombia, 800 m., Pacific side). 



Description.— CNHM 54283 (holotype), an adult female from El 

 Tambo, Giiisito, Cauca, Colombia. Head as broad as long; tongue 

 one-third as wide as mouth opening, elongate, oval, its posterior 

 border free and unnotched; snout broadly obtuse when viewed from 

 above, sloping backwards in profile, the upper jaw extending well 

 beyond the lower. Nostrils lateral, moderately projecting, their 

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

 rostralis straight, slightly rounded; loreal region weakly concave, 

 vertical, flaring very slightly to the upper lip. Eye large, prominent, 

 its diameter equal to its distance from tip of snout; interorbital 

 diameter nearly twice that of upper eyelid, considerably greater 

 than interval between notrils. Tympanum hidden. Fingers moderately 

 long, with lateral ridges, the second, third and fourth distinctly webbed 



