FROGS OF COLOMBIA — COCHRAN AND GOIN 35 



Key to Colombian Species of Phyllobates 



a'. Toes free, or barely webbed. 

 b x . No light lateral or dorsolateral stripes; first finger slightly longer than 

 second; toes free; heel reaching between posterior border of eye and 

 nostril; skin resistant to abrasion; belly usually slate color posteriorly (in 



alcohol), lighter anteriorly; size to 42.5 mm P. bicolor 



b 2 . A light dorsolateral stripe, sometimes faint. 



c 1 . First finger longer than second; heel reaching between anterior and 

 posterior corners of eye. 

 d 1 . Belly with coarse dark reticulations continuing on throat and forming 

 a pair of short parallel stripes on chin; toes not webbed; size to 22 mm. 



P. boulengeri 



d 2 . Chin and anterior part of belly black, posterior part marbled dark 



and light; third and fourth toes with a slight web, other toes free; 



size to 25.5 mm P. femoralis 



c 2 . First and second fingers subequal; heel reaching between posterior 

 border of tympanum and eye; belly drab with heavy dark reticulations; 

 toes webbed at base to one-eighth webbed; size to 30.5 mm . . P. mertensi 

 a 2 . Toes webbed at base to two-thirds webbed. 

 b l . First finger shorter than second, or subequal. 

 c 1 . First finger shorter than second. 



d 1 . Toes webbed at base; heel to posterior border of tympanum; belly 

 pinkish buff with small scattered sepia spots; size to 22 mm. 



P. subpunctatus subpunctatus 



d 2 . Toes one-fourth to two-thirds webbed. 



e 1 . Belly spotted. 



/'. Belly with dark spots and reticulations; toes one-third webbed; 



heel to between eye and nostril; size to 32.5 mm . . P. thorntoni 



f 2 . Belly with a coarse dark network; toes one-half webbed; heel to 



anterior corner of eye; size to 27.5 mm P. chocoensis 



e 3 . Belly immaculate; heel to tip of snout; size to 22.5 mm . . P. vergeli 

 c 2 . First and second fingers subequal. 



d 1 . Toes nearly one-fourth webbed; size to 25 mm. 



P. subpunctatus walesi 

 d 2 . Toes one-third to one-half webbed; belly immaculate drab; size to 



36.5 mm P. palmatus 



b 2 . First finger longer than second. 



c 1 . Toes one-fourth webbed; heel to center of eye; belly drab with a few 

 darker spots below femur and tibia; size to 28.5 mm ... P. inguinalis 

 c 2 . Toes webbed at base to one-eighth webbed. 



d l . Heel to anterior eye; belly immaculate or finely spotted; size to 22.5 



mm P. brunneus 



d 2 . Heel to center of eye. 



e l . Belly immaculate buff; size to 18 mm P. pratti 



e 2 . Belly immaculate except for a dark line around lower jaw and a 

 patch of dark dots below shoulder; size to 26 mm ... P. latinasus 



Phyllobates bicolor Bibron 



Plate 6a-c 



1841. Phyllobates bicolor Bibron, p. 235, pi. 29 (type locality, "Cuba" in error; 

 suggested as probably Colombia by Dunn, 1944c). — Dumeril and 



