BIRDS OF NORTH AND MIDDLE AMERICA. 445 
[Leucodora] edwardi Muusant, Ann. Soc. Linn. Lyon, xxii, n. s., 1876, 206. 
Saucerottia edvardi ScuaTER and Satvin, Proc. Zool. Soc. Lond., 1864, 365 
(Panama). 
S[aucerottea] edward Hartert, Das Tierreich, Troch., 1900, 54. 
Amazilia edwardi Muusant and VERREAUX, Classif. Troch., 1866, 35.—ELtior, 
Classif. and Synop. Troch., 1879, 221.—ZELED6N, Cat. Aves de Costa Rica, 
1882, 21; Anal. Mus. Nac. Costa Rica, i, 1887, 122.—Sanvin, Cat. Birds 
Brit. Mus., xvi, 1892, 221 (Lion Hill, Panam4, and Paraiso, Panam4é).— 
Savin and Gopman, Biol. Centr.-Am., Aves, ii, 1892, 302.—Boucarp, 
The Hum. Bird, ii, 1892, 81 (Ver4gua; Panam4); Gen. Hum. Birds, 1895, 202. 
A[mazilia] edwardii Rrpaway, Rep. U. 8. Nat. Mus. for 1890 (1891), 363 (diag- 
nosis, etc.). 
Amizilis edwardi Banas, Auk, xviii, Jan., 1901, 28 (San Miguél I., Panam4). 
SAUCEROTTIA CYANURA CYANURA (Gould). 
, BLUE-TAILED HUMMING BIRD. 
Adult male.—Pileum, hindneck, back, scapulars, and lesser wing- 
coverts deep metallic green; rump rather dull purplish bronze, deep- 
ening into dark metallic bluish on upper tail-coverts; tail wholly 
dark metallic violet-blue; remiges dusky, faintly glossed with viola- 
ceous, the secondaries and inner primaries chestnut or rufous-chestnut 
broadly tipped with violet-dusky; under parts mostly bright metallic 
green (between grass green and yellowish emerald green), sometimes 
slightly broken by very narrow and indistinct dull whitish or pale 
grayish margins to the feathers (especially on lower abdomen) and 
by an exposure of the pale grayish basal areas and edgings to feathers 
of throat; under tail-coverts rather dull steel blue or dark metallic 
violet-blue, sometimes partly coppery bronze, narrowly margined 
with pale grayish or light chestnut; femoral and lumbar tufts white; 
maxilla dull black, mandible dull whitish (reddish in life?) with 
dusky tip; iris dark brown; feet dusky; length (skins), 89-92.5 (91); 
wing, 51-54 (52.9); tail, 27.5-30 (28.9); culmen, 18-19.5 (18.8).¢ 
Adult female—Similar to the adult male, but duller in color, the 
feathers of under parts, especially those of chin, throat, and chest, 
usually narrowly margined with whitish, and those of chin and upper 
throat showing more or less of the subterminal white, the lower abdo- 
men mixed with dull buffy whitish, the under tail-coverts more gray- 
ish, and rump duller, less purplish; length (skins), 87-89 (88); wing, 
51; tail, 28-30 (28.7); culmen, 18.5-19 (18.8).® 
Nicaragua (Realejo; Chontales; Volcfén de Chinandega; Mata- 
galpa; San Gerénimo, Chinandega; boundary line between Nica- 
ragua and Honduras, 180 miles from Pacific coast), and Costa Rica 
(San Pedro). 
Amazilia cyanura GouLD, Mon. Troch., pt. xviii, Sept., 1859 (vol. v, 1861), pl. 315 
(Realejo, Nicaragua; coll. J. Gould).—Etz1ot, Classif. and Synop. Troch., 
1879, 223, part (Nicaragua).—Satvin, Cat. Birds Brit. Mus., xvi, 1892, 212, 
part (Realejo, Chontales, Voledén de Chinandega, and Matagalpa, Nicaragua).— 
Satvin and Gopmay, Biol. Centr.-Am., Aves, ii, 1892, 297, part (Nicaraguan 
localities). —Boucarp, Gen. Hum. Birds, 1895, 206, part (Nicaragua). 
@ Four specimens (three from Nicaragua, one from Costa Rica). 4 Three specimens, 
