BIRDS OF NORTH AND MIDDLE AMERICA. 119 
dyke brown, or approaching seal brown, the upper tail-coverts seal 
brown or dark chocolate; tail blackish brown or brownish black; 
shorter under tail-coverts light rufous-chestnut or chestnut-tawny, 
the longer ones sooty black; under wing-coverts blackish at tip 
(broadly) and base, ochraceous in middle portion, the axillars simi- 
larly marked, but middle portion buff instead of ochraceous; inner 
webs of remiges crossed near base by a broad but not sharply defined 
band of dull ochraceous; bill black; legs and feet dusky horn color 
(in dried skins); length (skin), 168-175 (171); wing, 90.5-94 (92.3); 
tail, 49-51.5 (50.3); culmen, 23-24.5 (23.7); tarsus, 32; middle toe, 
20.5-21 (20.7).¢ 
Adult female.—Similar to the adult male, and probably not always 
distinguishable, but usually(?) with color of under parts of body 
slightly tinged with olive, the sides and flanks strongly olivaceous; 
length (skins), 163.5-164 (163.7); wing, 90-93.5 (91.7); tail, 48.5— 
49.5 (49); culmen, 24-25.5 (24.7); tarsus, 30-31.5 (30.7); middle 
toe, 21.% 
Costa Rica (Tucurriqui; Carrillo; Cariblanco de Sarapiqui; Cerro 
de Santa Maria; Buena Vista) and western Panam4é (Santiago de 
Veragua). 
Formicarius analis (not Myothera analis Lafresnaye) Sauvin, Proc. Zool. Soc. 
Lond., 1866, 74, part (Tucurriqui, Costa Rica; Verdgua, Panama); 1867, 145 
(Santa Fe de Ver4gua, Panam4; crit.)—Lawrence, Ann. Lyc. N. Y., ix, 
1868, 110 (Costa Rica; crit.).—Frantzius, Journ. fiir Orn., 1869, 306 (Costa 
Rica).—Zetepén, Anal. Mus. Nac. Costa Rica, i, 1887, 115 (Costa Rica).— 
Satvin and Gopman, Biol. Centr.-Am., Aves, ii, 1892, 235, part (Tucurriqui, 
Costa Rica; Santiago de Ver4gua, Panam4). ~ 
[Formicarius] analis ScLatER and Satvin, Nom. Av. Neotr., 1873, 75, part. 
Formicarius nigricapillus ‘‘ Cherrie’’ Ripaway, Proc. U.S. Nat. Mus., xvi, no. 961, 
Nov. 28, 1893, 675 (Buena Vista, Costa Rica; coll. U. S. Nat. Mus.).—Car- 
RIKER, Ann. Carnegie Mus., vi, 1910, 623 (Carrillo, Cariblanco de Sarapiquf, 
and Cerro de Santa Maria, Costa Rica). 
[Formicarius] nigricapillus SHarpr, Hand-list, iii, 1901, 38, part (Costa Rica; 
Panama). 
Formicarius analis nigricapillus Hartert, Novit. Zool., ix, Dec., 1902, 614 (Cari- 
blanco de Sarapiquf, Costa Rica; crit.). 
FORMICARIUS MONILIGER MONILIGER Sclater. 
MEXICAN ANTTHRUSH. 
Adults (sexes alike)—Pileum dull black, the feathers broadly 
tipped or terminally margined with prouts brown, this often the 
prevailing color (the black being mostly concealed); rest of upper 
parts plain mummy brown, more castaneous (vandyke brown) on 
lower rump, upper tail-coverts, and hindneck; tail darker and duller 
brown basally, passing into dull slate-blackish terminally; loral 
and suborbital regions, anterior half of auricular region, malar region, 
@ Two specimens, from Costa Rica. 
