26o Field Museum of Natural History — Zoology, Vol. XIII. 



*Ocreatus underwoodi discifer" Heine. Buceno's White-footed 

 Racket-tail. 

 Steganurus discifer Heine, Journ. fur Ornith., XI, 1863, p. 210 (Merida, Vene- 

 zuela) . 

 Spathura underwoodi hricenoi Hartert, Nov. Zool., VI, 1899, p. 72 (Merida), 

 Spathura underwoodi discifer Hellmayr and Seilern, Proc. Zool. See. Lond., 

 191 1, p. 145. 



Range: Venezuela. 



4: Venezuela (near Merida). 



*Ocreatus underwoodi melanantherus^ (Jardine). Oblong Racket- 

 tail. 



Trochilus (Spathura) melananthera Jardine, Contr. Orn., 1851, p. 11, pi. 20 



(Quito). 

 Spathura melananthera GotrLD, Mon. Trochil., Ill, 1859, pi. 163; Salvin, Cat. 

 Bds. Brit. Mus., XVI, 1892, p. 376 (Pallatanga; Nanegal; Citado; Quito, 

 Ecuador). 



Range: Ecuador. 

 4: "Ecuador." 



*Ocreatus cissiurus cissiurus (Gould). Scissor-tailed Racket-tail. 



Spathura cissiura Gould, Proc. Zool. Soc. Lond., 1853, p. 109 (Peru); Id., Mon. 



Trochil., Ill, i860, pi. 166. 

 Steganura cissiura Elliot, Syn. Trochil., 1879, p. 144. 

 Spathura solstitialis Gould, Ann. & Mag. N. H., VIII, 1871, p. 62; Salvin, Cat. 



Bds. Brit. Mus., XVI, 1892, p. 377. 

 0[creatus] cissiurus Hartert, Das Tierreich, 1900, p. 151. 

 Ocreatus cissiurus Oberholser, Proc. U. S. Nat. Mus., XXIV, 1902, p. 332 



(Baeza, eastern Ecuador). 



Range : Ecuador and northern Peru. 

 i: "Ecuador." 



Ocreatus cissiurus peruanus" (Gould). Peruvian Racket-tail. 



Spathura peruana Gould, Mon. Trochil., Ill, 1849, pi. 164 (Moyobamba, Peru). 

 Steganura peruana Elliot, Syn. Trochil., 1879, p. 143. 

 Spathura peruana Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 378. 

 0[creatus] peruanus Hartert, Das Tierreich, 1900, p. 151. 



Range: Peru. 



■ Ocreatus underwoodi discifer (Heine) : Male only slightly diflFerent from 0. u. 

 underwoodi chiefly in size of green spots on sides of neck and body, but females of 

 0. u. discifer have the throat and chest white, without spots or a few minute ones. 



^ Ocreatus underwoodi melananthera (Jardine) : Similar to O. u. underwoodi, but 

 tail shorter and terminal spatules smaller; females somewhat more spotted on 

 anterior under parts. 



' Ocreatus cissiurus peruanus (Gould): Differs from 0. c. cissiurus in having the 

 outer web of outer tail feather like the inner web (not grayish as in cissiurus). 



