760 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
and secondaries plain slate color, the anterior lesser coverts broadly 
tipped with metallic green or golden green; primaries blackish slate, 
broadly edged with white, except the shorter proximal and outer- 
most quills; upper breast white or yellowish white, passing into yellow 
(deep chrome or light orange-yellow) on rest of under parts, the 
thighs slate color; bill pale grayish yellowish (bluish gray in life) ;+ 
naked eyelids ultramarine blue or violet-blue;* iris yellow;* feet 
dusky horn color (bluish gray or cinereous in life) ;* length (skins), 
255-287 (269); wing, 130.5-145.5 (137); tail, 139-158 (147.8); 
culmen, 18.5~21 (19.8); tarsus, 13-14.5 (13.6); inner anterior toe, 
13-15 (14).° 
Adult female—Similar to the adult male, but back, scapulars, 
rump, and upper tail-coverts uniform slate color (or between slate 
color and slate-gray), middle rectrices dark slate color (the middle 
pair less dark and narrowly tipped with black, white of lateral rec- 
trices much less extensive (that on outer web broken proximally into 
bars or spots, that on inner web with the proximal margin much less 
sharply defined, sometimes broken into irregular spotting or marbling), 
anterior under parts paler (slate-gray instead of slate color), yellow 
of other under parts averaging paler, and maxilla blackish, except 
for lower basal (rictal) portion; length (skins), 249-282 (264); wing, 
130.5-141 (136.6); tail, 140.5-160 (148) ; culmen, 17-20 (18.7); tarsus, 
12.5-15 (13.8); inner anterior toe, 13-15 (14).¢ 
Immature male.—Similar to the adult male, but outer web of 
greater wing-coverts and secondaries conspicuously edged with white, 
metallic color of middle rectrices duller, white of breast more extended, 
and yellow of posterior under parts paler. 
Immature female-—Similar to the adult female, but greater wing- 
coverts and secondaries conspicuously edged with white, the proximal 
secondaries (tertials) mottled with the same, middle rectrices lighter 
and more brownish slate and without black tip, and posterior under 
parts yellowish white. 
Pacific slope of Mexico, in States of Sinaloa (Mazatlan; Presidio 
de Mazatlan; La Palma; Los Coyotes; Escuinapa), Michoacén (La 
Salada), Colima (Manzanillo; Culata near Manzanillo; Colima; Rio 
de la Armeria; Sierra Madre), Guerrero (Acapulco; Rincén), Oaxaca 
(Tehuantepec; Tapéntepec; Tapana; Huilétepec; Santa Efigénia; 
Chimalapa; Chihuitén; Tequistlin; Ianhuitlin; Ventosa; Cacoprieto), 
and Chiapas (Tonals), and Territory of Tepic (San Blas; Santiago; 
Rancho El Colomo, Compostella). 
Trogon citreolus Goutp, Proc. Zool. Soc. Lond., 1835, 30 (locality unknown; coll. 
J. Gould); Mon. Trog., ed. 1, 1838, pl. 13 and text; ed. 2, 1875, pl. 26 and 
text.—Sciater and Satvin, Ibis, 1859, 132 (‘‘Yucatan;’”’ error).—Finscu, 
Abh. Nat. Mus. Bremen, 1870, 327 (Mazatlan, Sinaloa)—LawrRENcE, Mem. 
6 Sumichrast. b Ten specimens. ¢ Nine specimens, 
