428 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Uranomitra cyanocephala Exzr1ot, Classif. and Synop. Troch., 1879, 197, part.— 
Ripeway, Proc. U. S. Nat. Mus., xiv, 1891, 471 (San Pedro Sula, Honduras). 
Amazilia cyanocephala Banas, Bull. Mus. Comp. Zool., xxxix, 1903, 144 (Yaruca, 
Honduras; crit.). 
Cyanomyia guatemalensis Goutp, Introd. Troch., oct. ed., 1861, 148 (Guatemala; 
coll. J. Gould).—Scarer, Cat. Am. Birds, 1862, 312 (Cob4n, Guatemala).— 
Satvin, Cat. Birds Brit. Mus., xvi, 1892, 198, 660 (southern pine ridge, Brit. 
Honduras; Poctiin, Cobén, mts. of Chilasco, Panajach4l, and Duefias, Guate- 
mala; Matagalpa, Nicaragua).—Mutsant, Ann. Soc. Linn. Lyon, xxii, 1876, 
31.—LawrRENCceE, Proc. Bost. Soc. N. H., xiv, 1871, 284 (Tres Marias Islands; 
error).—SaLvin and Gopman, Biol. Centr.-Am., Aves, ii, 1892, 291. 
Cyanomia guatemalensis Lawrence, Mem. Bost. Soc. N. H., ii, 1874, 292 (“Tres 
Marias;’’ error). 
Cyanomya guatemalensis Boucarp, Notes quelques Troch., 1873, 9 (Vera Paz, 
Guatemala); Anal. Soc. Linn. Lyon, xx, 1874, 277 (do.). 
[Cyanomya] guatemalensis Mutsant, Ann. Soc. Linn. Lyon, n. s., xxii, 1876, 204. 
Clyanomyia] guatemalensis Satvin, Ibis, 1866, 204. 
U[ranomitra] guatemalensis Hxtnz, Journ. fiir Orn., 1863,. 195. 
Uranomitra guatemalensis Berterscu, Proc. U. S. Nat. Mus., xi, 1888, 562 (as to 
alleged Tres Marias specimen). 
[ Uranomitra] cyanocephala guatemalensis Stmon, Cat. Troch., 1897, 14. 
[Polytmus] guatemalensis Gray, Hand-list, i, 1869, 133, no. 1714. 
A[mazilia] cyanocephala guatemalensis Hartrert, Das Tierreich, Troch., 1900, 
62 (monogr.). 
[Amazilia] guatemalensis SHarre, Hand-list, ii, 1900, 109. 
AMIZILIS MICRORHYNCHA (Elliot). 
SMALL-BILLED AZURE-CROWN. 
Similar to A. cyanocephala guatemalensis, but bill conspicuously 
smaller, and tail, as well as sides and under tail-coverts, more reddish 
bronze. 
Adult? “—Pileum bright metallic blue, inclining, in places, to violet- 
blue and greenish blue; hindneck, upper back, sides of neck, and 
auricular region metallic bronze-green; wing-coverts, scapulars, and 
lower back rather dull metallic greenish bronze; rump and upper tail- 
coverts olive, faintly glossed with bronze, the feathers narrowly and 
indistinctly tipped with dull brownish buffy; tail metallic bronze, 
tinged with coppery bronze; remiges dusky, faintly glossed with 
purplish; malar region, chin, throat, most of chest, median line of 
breast, and abdomen, white; sides and flanks broccoli brown or drab 
glossed with coppery bronze; under tail-coverts pale dull coppery 
bronze margined with dull white; maxilla dull black, mandible pale 
brownish (reddish in life?) basally, dusky terminally; iris dark brown; 
feet brownish (in dried skin); length (skin), 88; wing, 58; tail, 28; 
culmen, 13.5.° 
@ The specimen described shows traces of immaturity. 
b One specimen (tyfe of the species). 
