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



Cyanomyia cyanocephala Gould, Mon. Trochil., V, 1856, pi. 286; Salvin, Cat. 



Bds. Brit. Mus., XVI, 1892, p. 197, part. 

 Amazilis cyanocephala cyanocephala Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 



191 1, p. 425; Hellmayr, Nov. Zool., XX, 1913, p. 252, in text. 

 Trochilus verticalis Lichtenstein, Preis.-Verz. Mex. Vog., 1830, p. I. 



Range: Southeastern Mexico. 

 i: "Mexico." 



*Ainazilis cyanocephala guatemalensis {Gould). Guatemalan Azure 

 Crown. 

 Cyanomyia guatemalensis Gould, Introd. Trochil., 1861, p. 148 (Guatemala); 



Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 198. 

 Amazilis cyanocephala guatemalensis Ridgwey, Bull. U. S. Nat. Mus., No. 50, V, 

 1911, p. 427. 



Range: Guatemala, British Honduras, Honduras and northern 

 Nicaragua. 



4: Nicaragua (San Raphael de Norte 2) and Guatemala 2. 



*Amazilis microrhyncha {Elliot). Small-billed Azure Crown. 



Cyanomyia microrhyncha Elliot, Ibis, 1876, p. 316 (Honduras?); Salvin, Cat. 



Bds. Brit. Mus., XVI, 1892, p. 197. 

 Amazilis microrhyncha Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 191 1, p. 428. 



Range: Honduras. 



Amazilis salvini {Brewster). Salvin's Azure Crown. 



Cyanomyia salvini Brewster, Auk, X, 1893, p. 214 (Nacosari, Sonora). 

 Amazilis salvini Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 191 1, p. 429. 



Range: Known only from northwestern Mexico (State of Sinaloa) 



and southern Arizona (Cochise Coimty). 



Genus PHAEOPTILA'^ Gould. 



Phaeoptila Gould, Mon. Trochil., V, 1861, text to pi. 340 (Type Cyanomyia (?) 

 sordida Gould). 



*Phaeoptila sordida {Gould). Dusky Humming Bird. 



Cyanomyia (?) sordida Gould, Ann. & Mag. Nat. Hist., IV, 1859, p. 97 (Oaxaca, 



Mexico). 

 Phaeoptila sordida Gould, Mon. Trochil., V, i86i,pl.340;ELLiOT,Syn. Trochil., 



1879, p. 10; Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 63; Ridgway, Bull. 



U. S. Nat. Mus., No. 50, V, 191 1, p. 367. 

 Phaeoptila zonura Gould, Introd. Trochil., 1861, p. 170 (Bolanos, Jalisco). 



Range: Western and southern Mexico. 



6: Mexico (Guerrero 5, and Cuenemarca i). 



a Cf. Ridgway, Bull. U. S. Nat. Mus. No. 50, V, 191 1, p. 367, in text. 



