FROGS OF COLOMBIA — COCHRAN AND GOIN 353 



developed or have faded since preservation so that only a few are 

 noticeable on the anterior portion of the dorsum; in another specimen 

 they are moderately developed; and one male and the female have 

 conspicuous, although small, rusty red spots over the entire top of 

 the head and dorsum and on the dorsal surface of the shank. In the 

 female the rusty-colored dorsolateral stripe can still be made out 

 extending from behind eye to about the region of the sacral hump. 

 The dark loreal stripe from tip of snout to eye is present in all four 

 specimens. 



Structurally these specimens are rather uniform. None of them has 

 apparent external tympani or discernible vomerine teeth. In all of 

 them the toes are extensively webbed while the fingers are but very 

 slightly webbed. The first finger on these specimens, as in the type, is 

 much smaller in diameter than the other fingers. These specimens, as 

 well as the type, have a rudimentary pollex. The three males have 

 external vocal pouches similar to that of the type. 



There seems to be a sexual difference in size. The female has a 

 head-and-body length of 19.1 millimeter while the three males are 

 15.1, 15.7, and 16.4 mm. in head-and-body length. 



Coloration in life. — In life these frogs were bright green above with 

 a pair of rusty red dorsolateral stripes and small rusty red spots on 

 the dorsum between the dorsolateral stripes and on upper surfaces 

 of the legs. The upper eyelids were reddish. The vocal pouch of the 

 male was bright green. The underside of the hind legs was greenish, 

 with the rest of the venter pale greenish white. 



Specimens Examined 



COLOMBIA 



Amazonas: Leticia, UF 8508 (type), 8509 (four paratypes), USNM 13S859. 



Sphaenorhynchus aurantiacus (Daudin) 



Plate 44a-c 



1802. Hyla aurantiaca Daudin, p. 28 (type locality, Brazil); 1803, p. 57. — 

 Dumeril and Bibron, 1841, p. 610.— Burmeister, 1856, p. 105— Gunther, 

 1858, p. 106.— Peters, 1871, p. 404; 1872, p. 683.— Boulenger, 1882a, 

 p. 388.— Beebe, 1919, p. 208.— Nieden, 1923, p. 308— Ahl, 1929, p. 

 147. — Crawford, 1931, p. 35. — Lutz and Lutz, 1938, p. 177— Guib6, 

 1949, p. 18.— Lutz and Kloss, 1952, p. 657.— Cochran, 1953, p. Ill — 

 Gorham, 1963, p. 21. 



1802. Hyla lactea Daudin, p. 30 (type locality, America); 1803, p. 62. — Guibe", 

 1949, p. 21. 



1820. Calamita aurantiacus.— Merrem, 1820, p. 172. 



1820. Calamita lacteus.— Merrem, 1820, p. 172. 



1838. Sphaenorhynchus lacteus. — Tschudi, 1838, p. 71. 



1843. Dendrosophus lacteus. — Fitzinger, 1843, p. 31. 



1865. Dryomelictes aurantiacus. — Cope, 1865a, p. 194. 



1870. Scytopis aurantiacus. — Cope, 1870, p. 554; 1874b, p. 123. 



