374 U.S. NATIONAL MUSEUM BULLETIN 28 8 



c 2 . Heel reaching to between posterior corner of eye and tip of snout. 

 d 1 . Back finely or coarsely granular or tubercular. 



e 1 . Toes distinctly webbed; disk of third finger larger than tym- 

 panum; disk of fourth toe smaller; interorbital diameter equal 

 to width of upper eyelid; size to 47 mm. . . E. sanctae-martae 

 e 2 . Toes unwebbed, or with only a trace of web; digital disks normal 

 or large. 

 /'. Disk of third finger and of fourth toe a little larger than tym- 

 panum; interorbital diameter twice the width of upper eyelid; 



size to 28 mm E. affinis 



f 2 . Disk of third finger and of fourth toe two to three times area 



of tympanum. 



g x . Toes and fingers shorter; dark blotches but no distinct 



chevrons on back; size to 52 mm. . E. latidiscus latidiscus 



g 2 . Toes and fingers longer; three to four dark chevrons on back; 



size to 55.5 mm E. latidiscus tamsitti 



d 2 . Back smooth or pustular; belly finely or coarsely granular. 

 e 1 . Diameter of eye equal to length of snout. 

 /'. Toes free; heel reaching to nostril; size to 32 mm. 



E. carmelitae 

 j 2 . Toes slightly webbed. 



a 1 . Heel reaching to tip of snout; size to 27 mm. _ 



E. taematus 



g 2 . Heel reaching to anterior border of eye (to between ear and 



eye in original description) ; size to 54.5 mm. . E. insignitus 



e 2 . Diameter of eye less than length of snout; interorbital diameter 



equal to or greater than width of upper eyelid. 



/'. Tubercles on outer tarsus, heel, or upper eyelid, or sometimes 



a sinuous ridge; size to 33.5 mm E. cruentus 



p. No tubercles on outer tarsus, eyelid, or heel. 

 g l . Heel to center of eye. 



h l . Interorbital diameter slightly greater than width of upper 

 eyelid; disk of third finger equal to nearly one-half the 

 area of tympanum; size to 34 mm. 



E. erythropleurus 



h 2 . Interorbital diameter \)i times the width of upper eyelid; 



disk of third finger as large as tympanum; size to 36 mm. 



E. vertebralis 

 g 2 . Heel reaching to anterior border of eye or tip of snout. 

 h l . A dark )-(-mark between shoulders or traces of such a 



mark; size to 21.5 mm E. frater 



h 2 . Back without distinct markings; interobital diameter 

 equal to width of upper eyelid; size to 34.5 mm. 



E. megalops 

 Group III: Head without bony ridges; males with U- or ) (-shaped heavy gular 

 folds; tips of digits often pointed; size small. 



a 1 . Disk of third finger and of fourth toe two or three times the size of tym- 

 panum; fingers free, toes free or barely webbed. 

 ft 1 . Belly finely granular, immaculate; size to 22.5 mm . E. lehmanvalenciae 



b 2 . Belly smooth, often spotted; size to 25.5 mm E. diastema 



a 2 . Disk of third finger and of fourth toe not quite as large as tympanum; 

 belly smooth, immaculate; fingers with very small webs, toes often 

 nearly one-fourth webbed; size to 23.5 mm E. gularis 



