456 BULLETIN 50^ UNITED STATES NATIONAL MUSEUM. 



/. Smaller (wing of adult male averaging 66.9, tail 37.2, culmen 23.5; 

 female, wing 65.2, tail 35.2, culmen 24.1); metallic color bordering 

 black of throat and chest more bluish. (South America east of Andes 

 to Panamd; St. Andrews Island, Caribbean Sea.) 



Anthracothorax nigricollis nigricollis, adult male (p. 459). 

 ff. Larger (wing of adult male averaging 67.2, tail 37, culmen 25.3; female, 

 wing 69.5, tail 37, culmen 27.2); metallic color bordering black of 

 throat and chest more greenish. (Western Ecuador.) 



Anthracothorax nigricollis iridescens (extralimital).'* 

 ee. Throat and xmder parts of body narrowly black (medially), the latter 

 sometimes merely darker green or bluish along median line. {Anthra- 

 cothorax prevosti.) 

 f. Bill longer (culmen averaging 26.2); under parts of body usually more 

 distinctly blackish along median line. (Southern Mexico to Hondu- 

 ras.) Anthracothorax prevostii prevostii, adult male (p. 463). 



ff. Bill shorter (culmen averaging less than 25); under parts of body less 



distinctly blackish along median line. 



g. Bill more slender, the culmen 23.5-25.5; upper parts and lateral under 



parts metallic green or bronze-green. (Nicaragua and Costa Rica.) 



Anthracothorax prevostii gracilirostris, adult male (p. 465). 



gg. Bill stouter and shorter, the culmen 22-23.5; upper parts and lateral 



under parts bronze or golden bronze. (Old Providence Island, 



Caribbean Sea.) 



Anthracothorax prevostii hendersoni, adult male (p. 466). 

 dd. Throat metallic green or bronze. 



e. Chest only partly black or without black, throat emerald green or bright 

 golden green. 

 /. A black spot on chest; center of abdomen blackish. (Triniddd and 

 Venezuela to Lower Amazon.) 



Anthracothorax gramineus (extralimital).^ 

 ff. No black on chest. (Panamd and southern Costa Rica.) 



Anthracothorax veraguensis, adult male (p. 467). 

 ee. Chest wholly black. 

 /. Under parts of body mostly (sometimes whollyc) black; upper parts 

 dark or deep bronze-green; larger (wing averaging 67.9, tail 42.9, 

 culmen 23.8). (Island of Haiti.) 



Anthracothorax dominicus, adult male (p. 468). 



a Lampornis iridescens Gould, lutrod. Troch., oct. ed., 1861, 65 (Guayaquil, w. 

 Ecuador; coll. J. Gould). — Anthracothorax violicaudus iridescens Oberholser, Proc. 

 U. S. Nat. Mus., xxiv, no. 1258, Jan., 1902, 321 (Nanegal, w. Ecuador; crit.). 



b {Trochilus'] gramineus Gmelin, Syst. Nat., i, pt. 1, 1788, 488 (based on Hausse col 

 vert Buffon, Hist. Nat. Ois., vi, 58; Black-breasted Hummingbird Latham, Synopsis, i, 

 pt. 2, 756). — Trochilus gramineus Audebert and Vieillot, Ois. Dorfe, i, 1801, 23, pi. 

 9. — Lampornis gramineus Gould, Mon. Troch., ii, 1858, pi. 77; Introd. Troch., oct. ed., 

 1861, 65; Elliot, Classif. and Synop. Troch., 1879, 40; Salvin, Cat. Birds Brit. Mus., 

 xvi, 1892, 95. — L[ampornis'] gramineus Hartert, Das Tierreich, Troch., 1900, 98 

 (monogr.). — [Polytmus'] gramineus Gray, Hand-list, i, 1869, 125, no. 1581. — Anthraco- 

 thorax gramineus Berlepsch, Novit. Zool., xv, 1908, 263 (Cayenne; crit.). — [Trochilus] 

 maculatus Gmelin, Syst. Nat., i, pt. 1, 1788, 488 (based on Colibri a cravate verte Buffon, 

 Hist. Nat. Ois., vi, 56; Colibri a gorge verte de Cayenne Buffon, PI. Enl., pi. 671, fig. 1 ; 

 Green-throated Hummingbird Latham, Synopsis, i, pt. 2, 755). — [Trochilus'] pcctoralis 

 Latham, Index Orn., i, 1790, 306 (=T. gramineus Gmelin). — Polytmus dominicus (not 

 Trochilus dominicus Gmelin) L^otaud, Ois. Trinidad, 1866, 132. 



c Except for white femoral tufts. 



