FROGS OF COLOMBIA — COCHRAN AND GOIN 339 



parotoid glands, the first toe longer than second, and some rather 

 clear, rounded, white spots in the dorsal ground color along the sides 

 between axilla and groin. 



From P. nicefori, the Colombian species with which it is most likely 

 to be confused, p. boliviano, can be distinguished by the white spots 

 along the side. In nicejori there may be a few white spots in this region 

 but if so they are small and granular rather than large (the size of the 

 tympanum) and rounded as they are in boliviano,. 



Description. — MLS 62, from La Providencia, Caqueta, Colombia. 

 Vomerine teeth in two short series, lying close together between the 

 small, squarish choanae; tongue three-fourths as wide as mouth 

 opening, broad, its posterior border extensively free and unnotched. 

 Snout short, broadly triangular when viewed from above, truncate 

 and slightly sloping in profile, the upper jaw not extending appreciably 

 beyond lower; nostrils lateral, not at all superior, slightly projecting, 

 their distance from end of snout about one-half that from eye, sepa- 

 rated from each other by an interval equal to their distance from eye. 

 Canthus rostralis well defined; loreal region slightly concave and 

 nearly vertical, the upper lip flaring out but slightly below it. Eye not 

 large nor particularly prominent; its diameter slightly greater than 

 its distance from nostril; palpebral membrane not reticulate; inter- 

 orbital distance slightly greater than width of upper eyelid, which is 

 relatively wide and slightly greater than distance between nostrils. 

 Tympanum distinct, about one-third the diameter of eye, separated 

 from eye by a distance equal to one-fourth its own diameter. Fingers 

 not webbed, fourth finger considerably longer than second, nearly 

 as long as third, disk of third just covers the tympanic area; no pro- 

 jecting rudiment of a pollex; a weak ulnar ridge. Toes without webs, 

 first toe longer than second, fifth longer than third, disk of fourth 

 covering about one-half the tympanic area; a distinct oval inner and a 

 smaller but equally distinct rounded outer metatarsal tubercle; a 

 very weak tarsal ridge; no dermal appendage on heel. Body rather 

 elongate, in postaxillary region a little narrower than greatest width 

 of head; when hind leg is adpressed, heel reaches anterior margin 

 of eye; when limbs are laid along the side, knee and elbow overlap 

 considerably; when hind legs are bent at right angles to body, heels 

 overlap greatly. No patagium. Skin of upper parts very finely glandu- 

 lar, a pair of broad, low, inconspicuous parotoid glands extending 

 from the eye to region of the sacral hump; a rather narrow glandular 

 ridge passes down and behind the tympanum; skin of throat and chest 

 very finely granular, that of belly and lower surface of thigh uniformly 

 and rather coarsely granular; no traces of a skinfold across chest; 

 adult female, no vocal sac. Skin of head not co-ossified with skull, 

 roof of skull not exostosed. 



