FROGS OF COLOMBIA — COCHRAN AND GOIN 349 



478.— Werner, 1896, p. 355; 1903, p. 351.— Giinther, 1901, p. 274 — 

 Nieden, 1923, p. 252.— Dunn, 1931, p. 413; 1932, p. 25.— Liu, 1935, 

 p. 34.— Taylor, 1952, p. 840.— Gorham, 1963, p. 22. 

 1960. Smilisca gabbi. — Starrett, 1960a, p. 300. — Goin, 1961, p. 15. 



Diagnosis. — A moderate-sized Smilisca without a dark postocular 

 stripe and with a tympanum equal to only about one-half the diameter 

 of eye. 



S. gabbi may be distinguished from S. phaeota, the only other species 

 of Similisca now known from Colombia, by the smaller tympanum 

 (tympanum at least two-thirds diameter of eye in phaeota) and by 

 the absence of the postocular dark stripe. 



Description. — CNHM 63893, Villa Arteaga, Uraba, Antioquia, 

 Colombia. Vomerine teeth in two short, transverse series, lying close 

 together between the small, rounded choanae; tongue two-thirds as 

 wide as mouth opening, very broadly cordiform, its posterior border 

 very slightly free and very shallowly notched. Snout short, broadly 

 U-shaped when viewed from above, slightly rounded in profile, the 

 upper jaw extending a little beyond lower; nostrils more lateral than 

 superior, moderately projecting, their distance from end of snout equal 

 to about two-fifths their distance from eye, separated from each other 

 by an interval equal to about four-fifths their distance from eye. Can- 

 thus rostralis well defined ; loreal region concave and somewhat oblique, 

 the upper lip flaring out somewhat below it. Eye moderate but promi- 

 nent, its diameter slightly greater than its distance from nostril; 

 palpebral membrane not reticulate; interorbital distance slightly less 

 than width of upper eyelid, which is relatively wide and slightly 

 greater than distance between nostrils. Tympanum very distinct, 

 about one-third the diameter of eye, separated from eye by a distance 

 equal to one-third its own diameter. Fingers webbed, the web reaching 

 the middle of penultimate phalanx of third finger ; fourth finger slightly 

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

 the tympanic area; no projecting rudiment of a pollex; a low ulnar 

 ridge. Toes completely webbed, the web reaching the base of disk 

 of all toes, third and fifth subequal, disk of fourth toe practically 

 covering the tympanic area; a distinct oval inner and a smaller but 

 equally distinct rounded outer metatarsal tubercle; an inner but no 

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

 in postaxillary region as wide or a little wider than greatest width of 

 head; when hind leg is adpressed, heel reaches slightly beyond tip of 

 snout; when limbs are laid along the side, knee and elbow just fail to 

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

 appreciably. No patagium. Skin of upper parts smooth; a distinct 

 narrow glandular ridge passing above the tympanum; skin of throat 

 and chest smooth, that of belly and lower surface of thigh uniformly 



