BIRDS OF NORTH AND MIDDLE AMERICA. 781 
TROGONURUS CURUCUI TENELLUS (Cabanis). 
GRACEFUL TROGON. 
Adult male—Pileum, hindneck, back, scapulars, lesser wing- 
coverts, rump, upper tail-coverts, and chest bright metallic green, 
the back, etc., usually slightly, more golden green, the upper tail- 
coverts usually slightly more bluish green; loral, orbital, auricular, and 
malar regions, chin, and throat black; middle pair of rectrices metallic 
bluish green or greenish blue, broadly and abruptly tipped with 
black, the two adjoining pairs with outer webs similar, but inner 
webs blackish; three lateral pairs of rectrices black broadly tipped 
with white, the subterminal portion of inner web and greater part 
of outer web broadly barred with white; middle and greater wing- 
coverts and outer webs of secondaries finely vermiculated with black 
and white; primaries black, edged (except outermost and shorter 
proximal quills) with white, this somewhat broken on terminal por- 
tion; under parts posterior to chest pure orange-yellow (between 
cadmium and chrome yellow), the anterior margin paler or some- 
what intermixed with white, forming an indistinct band next to 
green of chest; thighs sooty blackish; bill dull yellowish or yellowish 
gray in dried skins, light apple green® or chromium green ® in life; 
naked eyelids glaucous’ or blue;® iris dark brown; feet gray? or 
plumbeous;? length (skins), 213-254 (224); wing, 105-117.5 (110.4); 
tail, 124-144 (134.1); culmen, 16-17.5 (16.5); tarsus, 12-14.5 (12.7); 
inner anterior toe, 12-14.5 (12.8).¢ 
Adult female.—Pileum, auricular region, hindneck, back, scapulars, 
lesser wing-coverts, rump, and upper tail-coverts plain brown (nearly 
raw umber), the color slightly deeper (nearly mummy brown or 
prouts brown) on pileum, paler and grayer (nearly isabella color) 
on rump and upper tail-coverts, the longer of the latter sometimes 
more rufescent; middle pair of rectrices deep cinnamon-rufous or 
chestnut, rather narrowly tipped with black, this preceded by an 
indistinct subterminal narrow band of cinnamon-buffy; next two 
pairs with outer web similar but inner web blackish brown; three 
lateral pairs extensively white terminally and on greater part of 
outer web, black basally, the white portion (except an immaculate 
terminal area) broadly barred with black; middle and greater wing- 
coverts and secondaries much paler brown than back, etc., finely 
vermiculated with dusky; a white orbital ring, interrupted on lower 
eyelid, broadest behind eye, where margined posteriorly by a black 
bar; suborbital region and posterior portion of lores grayish dusky; 
@ Fresh colors of specimens shot by the writer in Costa Rica. 
6 Nutting. 
¢ Twenty-one specimens. 
