FROGS OF COLOMBIA — COCHRAN AND GOIN 227 



border fused and unnotched. Snout not large, U-shaped when viewed 

 from above, rather truncate in profile, the upper jaw extending but 

 little beyond lower; nostrils more lateral than superior, somewhat 

 projecting, their distance from end of snout about one- third that from 

 eye, separated from each other by an interval equal to about two- 

 thirds their distance from eye. Can thus rostralis rather well defined; 

 loreal region slightly concave and rather oblique, the upper lip flaring 

 out appreciably below it. Eye not large but prominent, its diameter 

 equal to its distance from nostril; palpebral membrane not reticulate; 

 interorbital distance, width of upper eyelid, and distance between 

 nostrils about equal. Tympanum very distinct, about four-fifths 

 the diameter of eye, separated from eye by a distance equal to one- 

 fourth its own diameter. Fingers webbed at base, web of third finger 

 reaching base of antepenultimate phalanx, fourth finger but little 

 longer than second, not quite reaching to disk of third which covers 

 about two-thirds of tympanic area; no projecting rudiment of a pollex; 

 no ulnar ridge. Toes less than one-half webbed, the web on fourth toe 

 reaching base of the penultimate phalanx, third and fifth toes sub- 

 equal, disk of fourth toe covering about one-half the tympanic area; 

 a distinct oval inner and a smaller rounded outer metatarsal tubercle; 

 no tarsal ridge; no dermal appendage on heel. Body not elongate, in 

 postaxillary region a little narrower than greatest width of head; 

 when hind leg is adpressed, heel reaches tip of snout; when limbs are 

 laid along the side, knee and elbow considerably overlap. When hind 

 legs are bent at right angles to body, heels just snugly touch. No 

 patagium. Skin of upper parts very finely glandular; a narrow glandu- 

 lar ridge passing above tympanum; skin of throat and chest finely 

 granular, that of belly and lower surface of thigh more coarsely 

 granular; just a hint of a skinfold across chest; adult male, vocal sac 

 subgular. Skin of head not co-ossified with skull, roof of skull not 

 exostosed. 



Dimensions. — Head and body, 37.3 mm.; head length, 13 mm.; 

 head width, 13.8 mm.; femur, 18.3 mm.; tibia, 18.8 mm.; heel-to-toe, 

 26.5 mm.; hand, 10 mm. 



Color in alcohol. — This specimen is a uniform yellowish tan above 

 and below without vestige of a pattern. The dark choroid coat of 

 the eye shows through the yellowish, somewhat transluscent upper 

 eyelids. 



Variation. — The only variations discernible in the series at hand 

 seem to be results of preservation and the ages of the various 

 specimens. 



Remarks. — H. rhodoporus was considered a synonym of II. punctata 

 until B. Lutz (1949, p. 313) pointed out in her synopsis of the "green" 

 Hyla that it probably was a valid species. Geographically, rhodoporus 



