BIRDS OF NORTH AND MIDDLE AMERICA. 765 
f. Loral, orbital, auricular, and malar regions, chin, and throat, black; 
lateral rectrices regularly barred with black and white; maxilla 
yellow, like mandible. 
Trogonurus personatus, adult female (extralimital). 
ff. Loral, orbital, auricular, and malar regions, chin, and throat, dull 
brownish or dusky grayish; lateral rectrices without regular bars; 
maxilla mostly black. 
g. Loral, orbital, and auricular regions, etc., dusky grayish; white tip to 
lateral rectrices narrow..Trogonurus puella, adult female (p. 776). 
gg. Loral, orbital, and auricular regions, etc., dull brownish; white tip 
to lateral rectrices broad. 
Trogonurus collaris, adult female (extralimital). 
d. Posterior under parts orange, orange-red, or salmon-pinkish. (Trogonurus 
auranttiventris.) 
e. Posterior under parts light reddish orange. 
Trogonurus aurantiiventris aurantiiventris, adult female (p. 779). 
ee. Posterior under parts salmon-pink. 
Trogonurus aurantiiventris underwoodi, adult female (p. 780). 
cc. Posterior under parts yellow..Trogon curucui tenellus, adult female (p. 781). 
TROGONURUS MEXICANUS (Swainson). 
MEXICAN TROGON. 
Adult male—Above bright metallic green, bronze-green, or bronze, 
the middle pair of rectrices metallic green or bluish green, abruptly 
tipped with black; wings dark slaty or slate-blackish, the wing- 
coverts and secondaries finely vermiculated with grayish white; 
tail (except middle pair of rectrices) black, the three outer pairs of 
rectrices broadly and abruptly tipped with white; loral, orbital, 
auricular, and malar regions, chin, and throat dull black or slate- 
black; chest metallic green or bronze-green, bordered posteriorly by 
a broad bar or band of white across upper breast; rest of under 
parts pure red (geranium red), the thighs slate-black; bill yellow; 
feet brownish (in dried skins); length (skins), 275-313 (292); wing, 
138.5-152 (145.6); tail, 165.5-190 (179.9); culmen, 15.5-17.5 (16.5); 
tarsus, 15-16 (15.3); inner anterior toe, 14-15 (14.3).¢ 
Adult female-—General color of upper parts brown (nearly raw 
umber to more grayish brown—rarely hair brown), the middle pair 
of rectrices mars brown or nearly russet, abruptly tipped with black 
(more narrowly than in adult male), sometimes with a narrow sub- 
terminal band of paler brown, cinnamomeous, or buffy; wing-coverts 
and secondaries vermiculated with pale brown, or dull buffy, and 
dusky; outer webs of primaries broadly edged with dull white, the 
innermost with outer web wholly white (abruptly) basally; rectrices 
(except middle pair) dull black, the three outer pairs broadly tipped 
with white and with terminal half (more or less) of outer web white, 
broadly barred with blackish, the terminal white on inner web 
@Sixteen specimens, 
