272 U.S. NATIONAL MUSEUM BULLETIN 2 88 



Hyla marmorata (Laurenti) 



Plate 36a-c 



176S. Bufo marmoratus Laurenti, p. 29 (type locality, "Habitat Suriname"). 



1802. Hyla marmorata. — Daudin, 1802, p. 34; 1803, p. 71. — Dumeril and Bibron, 

 1841, p. 571— Fitzinger, 1843, p. 3.— Gunther, 1858, p. 104.— Cope, 

 1868, p. 111.— Peters, 1871, p. 403.— Boulenger, 18S2a, p. 391 — 

 Crawford, 1931, p. 35.— Liu, 1935, p. 34.— Lutz and Kloss, 1952, p. 

 650.— Cochran, 1955, p. 174.— Rivero, 1961, p. 126.— Gorham, 1963, 

 p. 22. 



1820. Calamita marmorata. — Merrem, 1820, p. 174. 



1838. Lophopas marmoratus. — Tschudi, 1838, p. 73. 



Diagnosis. — A brightly colored Hyla with a large, brightly marked 

 patagium and well-developed ulnar and tarsal ridges. 



The combination of brightly marked patagium, distinct ulnar and 

 tarsal ridges, and conspicuously spotted belly should serve at a glance 

 to distinguish Hyla marmorata from any other Colombian Hyla. 



Description. — MLS 55, from Rio Orteguaza, La Providencia, 

 Caqueta, Colombia. Vomerine teeth in two short, rounded series, lying 

 close together between the small, rounded choanae; the tooth patches 

 are slightly larger than the choanae; tongue about one-half as wide as 

 mouth opening, somewhat cordiform, its posterior border very slightly 

 free and with a trace of a notch. Snout short, rounded when viewed 

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

 little beyond lower; nostrils tiny, more lateral than superior, a little 

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

 eye, separated from each other by an interval nearly equal to their 

 distance from eye. Can thus rostralis slightly defined ; loreal region flat- 

 tened and nearly vertical, the upper lip barely flaring out below it. Eye 

 neither large nor particularly prominent, its diameter equal to its 

 distance from nostril; palpebral membrane not reticulate; interorbital 

 distance greater than width of upper eyelid, which is about equal to 

 distance between nostrils. Tympanum very distinct, about three-fifths 

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

 its own diameter. Fingers webbed, web extending to the middle of the 

 penultimate phalanx of third finger; fourth finger but slightly longer 

 than second, just reaching to disk of third which just snugly covers the 

 tympanic area; no projecting rudiment of a pollex; a well-developed 

 ulnar ridge. Toes nearly completely webbed, the web on fourth toe 

 reaching the distal third of the penultimate phalanx, third and fifth 

 toes subequal, disk of fourth toe not quite covering the tympanic area; 

 a distinct oval inner and a smaller but distinct rounded outer meta- 

 tarsal tubercle; an exceptionally well-developed 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 



