464 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
dusky usually replacing purplish on basal portion of outer webs, or 
with the purplish more restricted (on both webs), the tip (broadly on 
outermost rectrix) abruptly grayish white; primaries dusky brownish 
slate; median portion of chin and throat velvety black (this some- 
times broken or irregular), the median portion of chest and breast 
metallic bluish green, passing into dusky on median line of abdomen; 
sides of chin and throat, malar region, and thence posteriorly to thighs, 
white; sides of neck, sides of chest, sides of breast, sides, and flanks 
metallic greenish bronze, sometimes washed or intermixed with pur- 
plish bronze; under tail-coverts grayish bronzy, tipped or terminally 
margined with white; femoral and lumbar tufts white; bill, etc., as 
in adult male; length (skins), 103-121 (114); wing, 62-69 (64.7); 
tail, 32-38 (84.3); culmen, 25-31 (28.1).¢ 
Immature male and female-—Sumilar to the adult female, but chin 
and upper throat white, and sides of chin and throat (sometimes sides 
of chest and breast also) spotted or overlaid with chestnut (the 
feathers white beneath surface). 
Southeastern Mexico in States of Tamaulipas (Tampico; Tantina; 
Alta Aira), Vera Cruz (Cérdova; Jalapa; Misantla; Choap4m; 
Catemaco; Tlalcotalpam; Coatzocoalcos; Antigua), Oaxaca (Santa 
Efigénia; Tehuantepec), Chiapas (Palénque), and Yucatan (La Vega; 
Chichen-Itza; Labna; between Ticil and Uxmal; Cozumél, Meco, 
Mugeres, and Holbox islands), southward through British Honduras 
(Belize; Half Moon Cay; Isabella; Manatee Lagoon) and Guatemala 
(Santa Ana, Petén; Lake Petén; Escuintla; Hacienda de la Con- 
cepcién) to Honduras (San Pedro; Bonaca Island). 
Trochilus prevostii Lesson, Hist. Nat. Colibr., 1830-31, 87, pl. 24 (locality 
unknown); Index Gen. et Synop. Troch., 1832, p. xii (Surinam?).—? Bour- 
ciER, Rev. Zool., vi. 1843, 99 (‘‘Caracas’’). 
(2) T[rochilus] prevostii BourcreR and Muusant, Ann. Soc. d’Agr. Lyon, vi, 1848, 
39 (‘‘Caracas”’). 
Plolytmus] prevostiti Gray, Gen. Birds, i, Dec., 1848, 108. 
[Polytmus] prevostit Gray, Hand-list, i, 1869, 125, no. 1577. 
[Lampornis] prevosti BoNAPaRTE, Consp. Av., i, 1850, 72; Rev. et Mag. de Zool., 
1854, 250.—ScuateR and Satvin, Nom. Av. Neotr., 1878, 81, part. —Mut- 
sant, Ann. Soc. Linn. Lyon, xxii, 1876, $08. Sexeou. Hand-list, ii, 1900, 
118, part. 
Lampornis prevostt GoutD, Mon. Troch., pt. xv, 1858,(vol. ii), pl. 75, part; 
Introd. Troch., oct. ed., 1861, 65, part.—SctatTER, Proc. Zool. Soc. Lond., 
1856, 287 (Mexieo)s 1859, 367 (Jalapa, Vera Cruz), 385 (Choapdm, Vera 
Cruz).—ScraTer and Satvin, Ibis, 1859, 127 (Guatemala); Proc. Zool. Soc. 
Lond., 1870, 837 (Atlantic coast Honduras)—Mutsant and VuRREAUX, 
Classif. Troch., 1866, 24; Hist. Nat. Ois.-Mouch., i, livr. 3, 1874, 160 (Guate- 
mala; Honduras; Mexico); iv, livr. 2, 1877, 156.—Satvin, Ibis, 1860, 272 
(Escuintla, Guatemala); 1864, 380 (Half Moon Cay, Brit. Honduras); 1889, 
« Fifteen specimens. 
