BIRDS OF NORTH AND MIDDLE AMERICA. 167 
darker on pileum, and passing into chestnut on lower rump and 
upper tail-coverts; tail darker sepia brown, passing into blackish 
brown terminally; chin and throat dull tawny-rufous or rufous-tawny 
(the chin sometimes decidedly paler, rarely dull whitish), passing into 
deeper tawny-rufous or tawny-chestnut on chest; rest of under parts 
plain brown (nearest mummy brown), sometimes tinged with more 
rufescent brown, especially on breast and under tail-coverts; under, 
wing-coverts mixed tawny and grayish brown; maxilla dusky horn 
color or blackish, mandible pale yellowish or dull whitish (m dried 
skins), dusky or horn colored terminally and along tomia; iris hazel ;* 
legs and feet horn color or dusky (in dried skins). 
Young.—Similar to adults, but colors rather duller, especially on 
throat and chest, which are dull tawny or tawny-brown, some of the 
feathers with very indistinct shaft-streaks of paler and (sometimes) 
with narrow and indistinct terminal margins of duller brown or 
dusky. 
Adult male—Length (skins), 142-163 (154); wing, 78-83 (80.5); 
tail, 51-62 (56.2); culmen, 23-27 (24.7); tarsus, 20-22 (21.2); middle 
toe, 16-17.5 (17).° 
Adult female —Length (skin), 158; wing, 80; tail, 56.5; culmen, 24; 
tarsus, 20.5; middle toe, 17.5.° 
Southeastern Mexico, in States of Vera Cruz (Cérdova; Potrero, 
near Cordova; Jico; Jalapa; Orizaba), and Mexico (City of Mexico), 
Guatemala (Cobén; Raxché; Savana Grande; Volc4n de Agua), Hon- 
duras (Volcén de Puca, Department of Copan), Costa Rica (Cari- 
blanco de Sarapiqui), Panama (Lion Hill; Panama; Calovévora; 
Cordillera de Tolé; Santiago de Veragua) and southward through 
Colombia (Bogoté; Frontino) and Ecuador (Intaj; Sarayacu) to Peru 
(Yurimaguas; Chyavetas) and lower Amazon (Rio Capim).? 
(?) ‘‘Sclerurus ruficollis Swainson, Birds Brazil, [‘'1834-41”], pl. 79.” 
Sclerurus mexicanus ScuaTeR, Proc. Zool. Soc. Lond., 1856 (pub. Jan. 26, 1857), 
290 (Cérdova, Vera Cruz, Mexico; coll. P. L. Sclater); 1859, 365 (Jalapa, 
Vera Cruz); 1864, 175 (City of Mexico); Cat. Am. Birds, 1862, 145, pl. 12 
@ W. W. Brown, jr., on label. © 
b Seven specimens, 
¢ One specimen. 
Locality. Wing. | Tail. ue Tarsus. ve 
MALES, 
Two adult males from Vera Cruz, Mexico.....-...-.-..--+-++++ 80.2 58.5 26 20.7 16.7 
One adult male from Honduras........-.-.-22--022eeeeeeeeeeee 83 62 27 21 17.5 
Four adult males from Panam4 (Lion Hill).................--- 80 53.6 23.2 21.5 17 
@ South American specimens not seen by me. 
