FROGS OF COLOMBIA — COCHRAN AND GOIN 209 



ECUADOR: Oriente, Abitagua, USNM 118709; Napo Pastaza, Puyo, JAP 

 1956. 



5. PHANTASMAGORIA group 



Very large tree frogs with vomerine teeth in transverse patches, 

 very large, extensively webbed hands and feet, and sacral diapophyses 

 not appreciably expanded. At present, H. immensa of Costa Rica is 

 the only other species we know of that is a member of this group. 



Hyla phantasmagoria Dunn 



Plate 28a-c 



1943. Hyla phantasmagoria Dunn, p. 309 (type locality, Colombia, Rio Cauca, 

 near border of Antioquia and Bolivar) ; 1944c, p. 516. — Gorham, 1963, 

 p. 22. 



Diagnosis. — An immense Hyla with enlarged hands and feet that 

 are extensively webbed and with the cranial derm not co-ossified 

 with the skull. 



The large size, large hands and feet, and transverse patches of 

 vomerine teeth of this species serve to distinguish it easily from 

 any other Colombian Hyla. 



Description. — MLS 267 (holotype) from Rio Cauca, near Antio- 

 quia-Bolivar border. Vomerine teeth in two long, heavy transverse 

 series, lying close together on a level with the posterior borders of 

 the large, rounded choanae and extending laterally to terminate 

 behind the median third of the choanae; tongue two-thirds as wide 

 as mouth opening, broadly rounded, its posterior border fused and 

 with just a hint of a notch. Snout large, broadly U-shaped when 

 viewed from above, truncate in profile, the upper jaw extending 

 slightly beyond lower; nostrils lateral, considerably projecting, 

 their distance from end of snout one-third that from eye, separated 

 from each other by an interval equal to about two-thirds their dis- 

 tance from eye, Canthus rostralis strongly defined; loreal region 

 concave and somewhat oblique, the upper lip flaring out distinctly 

 below it. Eye large, very prominent, its diameter equal to its distance 

 from nostril; palpebral membrane not reticulate; interorbital distance 

 slightly greater than width of upper eye lid, which is relatively wide 

 and slightly greater than distance between nostrils. Tympanum very 

 distinct, about one-half the diameter of eye, separated from eye by a 

 distance nearly equal to one-half its own diameter. Fingers webbed 

 to disks of second, third, and fourth, to base of penultimate phalanx 

 of first; fourth finger but half a disk longer than second and reaching 

 to middle of disk of third which much exceeds the tympanic area 

 and nearly covers the eye; a pronounced projecting pollex covered 

 with soft flesh; ulnar ridge well developed with scalloped margin. 

 Toes completely webbed to all disks, third and fifth subequal, disk 



