BIRDS OF NORTH AND MIDDLE AMERICA. 463 
(?) Trochilus atricapitlus Vir1ttoT, Nouv. Dict. d’Hist. Nat., vii, 1817, 354 (Para- 
guay; based on del faxa negra a lo largo Azara). 
(?) Lampornis obscura Boucarp, The Hum. Bird, i, no. 4, April 1, 1891, 25 (Brazil; 
coll. A. Boucard; =melanism?). 
(2) Lampornis violicauda var. Boucarp, Proc. Zool. Soc. Lond., 1879, 178 (=mel- 
anism?). 
ANTHRACOTHORAX PREVOSTIL PREVOSTII (Lesson). 
PREVOST’S MANGO. 
Adult male.—Above metallic bronze-green or greenish bronze; 
middle pair of rectrices dull dusky bronze-green, varying to dull cop- 
pery bronze, the other rectrices deep purplish maroon strongly 
glossed with metallic violet-purple, margined terminally (rather 
broadly) with black; remiges dusky brownish slate; median portion 
of chin and throat (broadly) velvety black; sides of chin and throat 
(narrowly), malar region, lower foreneck, chest, and median portion 
of breast and abdomen metallic bluish green, the feathers dull black 
or dusky beneath surface, auricular region, sides of neck, sides of 
chest and breast, sides, and flanks bronze-green; under tail-coverts 
dusky, often intermixed with deep purplish chestnut (the latter 
sometimes prevailing); femoral and lumbar tufts white; bill dull 
black; iris dark brown; feet dusky; length (skins), 110-120 (115); 
wing, 63.5-68.5 (66); tail, 34-37 (35.6); culmen, 24-29 (26.2).4 
Adult female——Above much less bronzy than adult male, often 
nearly pure metallic green; lateral rectrices with brownish gray and 
a Twenty-four specimens. 
Locality. Wing. | Tail. | posed 
~ jeulmen. 
MALES, 
Ten adult males from Tamaulipas, Vera Cruz, and Oaxaca............---------- 66.4 36 26.5 
Two adult males from Yucatan. ............---- 2-2-2 eee eee eee eee eee cee 66.2 35.2 25.2 
Ten adult males from Cozumé| Island............. 65.4] 35.2 26 
One adult male from British Honduras 66.5 35.5 26 
One adult male from eastern Guatemala. 65.5 36 27 
Three adult males from Nicaragua (A. p. gracilirostris).......-.22-22----0-eee eee 66 35 24.7 
Six adult males from Costa Rica (A. p. gracilirostris)......0......2000cceeeeeeeee 65.9 35.4 24.3 
Four adult males (A. p. hendersoni) from Old Providence Island..............-- 67 36.7 22.9 
FEMALES. 
Five adult females from Tamaulipas, Vera Cruz, and Oaxaca.....-..-.-..----+- 64.3 34.1 29.5 
One adult female from Yucatan............. pebeisice ce cuasnca este cemeniesemenoe cee 66 35 28 
Four adult females from Cozumél Island....-..........-.22-022222e eee ee eee eeee 64.9 34.9 28.2 
One adult female from British Honduras...........-..--2-22--22-02 eee e cece econ 64 34.5 28.5 
One adult female from eastern Guatemala. .........-.--22-02----2- eee eee eee eee 67 34 25 
One adult female from Chiapas (Palénque)...-.......----.----02eeeeeeeee eee eee 65.5 35 26.5 
Two adult females from Nicaragua (A. p. gracilirostris).......-------- -ee-| 66.5 36 25.5 
Eight adult females from Costa Rica (A. p. gracilirostris) ae 64.9 35.3 25.4 
Two adult females (A. p. hendersoni) from Old Providence Island..........-.--- 66.2 35 22.7 
