419 



EE. Marbled irregularly with dark above; tympanum less 

 than y^ eye. 

 F. Red in thigh and shin; disks smaller; belly light; heel 

 beyond snout; a W-shaped scapular wart; tympanum 



3^ eye cerasinus. 



FF. Black in shin and thigh; disks larger; belly marbled; 

 irregularly warty above; tympanum }4 ©ye. 



ventrimarmorata . 

 DD. Tympanum absent; small; red in groin; oblique bars on 



sides lutosus molinoi. 



CC. Belly smooth; a marked vocal sac in male; feet pecuUar, 



short diastema. 



Key to Canal Zone Phyllohates. 



A. Markings white; no Unear markings below. 



B. Tadpole with normal mouthparts; male with normal third 



finger; no complete Ught streak from groin to above eye. 



C. A light streak from groin to below eye; a dorso-lateral Hght 



streak from sacrum to above eye, above a lateral black 



band; male with black throat; disk of toe I equals ^ 



disk of toe II; disk of toe V equals disk of toe IV; toe V 



reaching penultimate joint of toe IV talamancae. 



CC. No marked light streak from sacrum; at least a trace of a 

 light streak from groin in lateral black band. 

 D. Large (30 mm.); mottled below with gray in both sexes; 

 a trace of groin streak; disk of toe I about equals disk 



of toe II kingshuryi. 



DD. Smaller (21 mm.); white below in both sexes; groin 

 streak prominent to middle of side; disk of toe I equals 

 }/2 disk of toe II; disk of toe V about equals disk of 



toe IV latinasus. 



BB. Tadpole with umbrella mouthparts (much produced lower 

 Hp and reduced labial teeth); male with much swollen 

 third finger; a Hght streak from groin to above eye, cutting 

 diagonally across lateral black band; disk of toe I equals ^ 



disk of toe II; disk of toe V equals Yz disk of toe IV flotator. 



AA. Markings yellow; linear markings below truncatus. 



.{ Key to Atelopus of the region. 



A. Almost entirely light yellow, sometimes a dark X-mark on 



head crudger. 



AA. Nearly uniform dark brown; tiny yellow markings (dots or 



semicircles) glyphus. 



