162 Proceedings of the Biological Society of Washington. 



are round and more distant from the choanae) ; snout moderately prominent 

 and acute with rounded canthus rostralis and concave loreal area; orbital 

 diameter slightly less than distance from eye to nostril ; nostril near tip of 

 snout; interorbital space much broader than upper eyelid; body wider than 

 head ; tympanum large, distinct, vertical diameter equal to two thirds the 

 diameter of the eye; tympanum oval; fingers rather long, first slightly 

 longer than second, third and fourth with large discs; toes rather long with 

 no trace of web, discs less well developed than on third and fourth fingers; 

 subarticular tubercles large and prominent; a very large inner and very 

 small outer metatarsal tubercle; the length of the foot equals the distance 

 from axilla to tip of snout; the tibio tarsal articulation reaches the nostril; 

 (in lanciformis to well beyond tip of snout); skin not rough but finely 

 granular; belly smooth with strongly marked discoidal fold; lower surface 

 of thighs granular. 



Color: ashy mauve above, with a large ) (-shaped dorsal marking; a 

 fine vertebral light line ; two dusky stripes situated posteriorly on the sides 

 of the dorsal region, separated by the width of the diapophyses; area from 

 tip of snout to and including the tympanum black; the dark streak exactly 

 limited by the canthus, upper eyelid and fold above the tympanum; limbs 

 very faintly crossbarred; plantar surfaces of feet black. Total length 60 

 mm. (nose to vent); hind limb 105 mm. 



The half -grown para type from Guapiles is similar in marking but is 

 lighter in general color, more pinkish. The paratype from San Miguel 

 Island is almost uniform reddish and has a very slightly longer leg. 



E. lanciformis differs markedly in color, in that the legs are always 

 sharply, almost brilliantly, cross-barred with narrow markings, sharply 

 defined. Small round black spots with a light center are almost invariably 

 present mediad from the tympanum. The longer leg has been mentioned. 



