214 Field Museum of Natural History — Zoology, Vol. XIII. 



*Thalurania furcata fissilis* Berlepsch and Hartert. Venezuelan 

 Wood Nymph. 

 Thalurania furcata fissilis Berlepsch and Hartert, Nov. Zool., IX, 1902, p. 87 



(Caura River, Venezuela). 

 Thalurania fissilis Chubb, Bds. Brit. Guiana, I, 1916, p. 404. 



Range: Venezuela and British Guiana. 



3: British Guiana (Potaro i, Mazaruni R. i, Cumacusa i). 



♦Thalurania nigrofasciata (Gould). Blackbanded Wood Nymph. 



Trochilus ( ?) nigrofasciata Gould, Proc. Zool. Soc. Lend., 1846, p. 89 (Rio 



Negro). 

 Thalurania nigrofasciata Gould, Mon. Trochil., II, 1861, pi. 104; Elliot, Syn. 



Trochil., 1879, p. 100, part; Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 82; 



Hartert and Hartert, Nov. Zool., I, 1894, p. 44; Chapman, Bull. Am. Mus. 



N. H., XXXVI, 1917, p. 292 (La Morelia; Florencia; Buena Vista; Colombia). 



Range: Region east of the Andes in Peru, Ecuador, Colombia and 

 in northwestern Brazil. 

 3 : Ecuador. 



♦Thalurania tschudi Gould. Tschud's Wood Nymph. 



Thalurania tschudi Gould, Proc. Zool. Soc. Lond., i860, p. 312 (Ucayali, north- 

 eastern Peru); Id., Mon. Trochil., II, 1861, pi. 103; Salvin, Cat. Bds. Brit. 

 Mus., XVI, 1892, p. 83; Berlepsch and Hartert, Nov. Zool., IX, 1902, 

 p. 86; Hellmayr, Nov. Zool., XIV, 1907, pp. 77-78, in text. 



Range: Northeastern Peru. 

 2: Peru (Moyobamba). 



♦Thalurania jelskii Taczanowski. Jelsk's Wood Nymph. 



Thalurania jelskii Taczanowski, Proc. Zool. Soc. Lond., 1874, PP- 138. 542 

 (Soriano); Elliot, Syn. Trochil., 1879, p. loi; Sharpe in Gould's Mon. 

 Trochil., Suppl., 1887, pi. 29; Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 

 84; Hartert, Ibis, 1897, p. 432, in text; Hellmayr, Nov. Zool., XIV, 1907, 

 p. 78, in text. 



Range: Peru and Bolivia. 

 i: Bolivia. 



Thalurania simoni'' Hellmayr. Simon's Wood Nymph. 



Thalurania simoni Hellmayr, Bull. Brit. Om. Club, XIX, 1906, p. 8 (Rio 

 Solimoens); Id., Nov. Zool., XIV, 1907, p. 77. 



Range: Amazon River region, above the junction of the Rio Negro, 

 west Brazil. 



" Thalurania furcata fissilis Berlepsch & Hartert: Differs in having the under 

 tail coverts uniform steel blue without white edges and bill averaging longer. 



^ Thalurania simoni Hellmayr: Differs from T. jelskii Tacz., which is its nearest 

 ally, in having wings and tail shorter; green of throat more golden; under tail coverts 

 broadly edged with white; interscapular region (when held against the light) blackish 

 green (not bluish green) ; a distinct frontlet of glittering green. 



