120 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
chin, and throat uniform black, the first with a small central spot 
of white; band across foreneck and extending thence to hindneck and 
supra-auricular region and terminal portion of auricular region 
chestnut, duller laterally; under parts plain deep sooty grayish, 
darkest on chest (where sometimes strongly tinged with. olive), 
paler on abdomen (where sometimes inclining to buffy whitish), the 
sides and flanks olive or mixed sooty gray and olive; under tail- 
coverts light brown (nearly raw-umber), the longer ones mostly 
blackish, margined terminally with light brown; under wing-coverts 
buff, broadly tipped with dark sooty brown; inner webs of remiges 
crossed by a broad band of tawny-buff anterior to their middle por- 
tion; bill black; iris brown; legs and feet brownish (in dried skins). 
Young. Essentially like adults but black of throat, etc., replaced 
by dark sooty brown; chestnut band across foreneck narrow and 
more or less broken, and general color of under parts more sooty. 
Adult male —Length (skins), 150-181 (173); wing, 87.5-94 (90.6); 
tail, 50-55 (52.9); culmen, 20.5-22 (21.2); tarsus, 30.5-33 (31.7); 
middle toe, 19-21 (20).% 
Adult female-——Length (skins), 155-175 (167); wing, 85.5-92.5 
(89.2); tail, 51-56 (53.5); culmen, 20-21 (20.7); tarsus, 30-33 (31.3); 
middle toe, 20.° 
Southeastern Mexico, in States of Vera Cruz (Cérdova; Playa 
Vicente; Cerro de la Defensa; Atoyaéc; Motzorongo; Buena Vista), 
Oaxaca (mountains near Santo Domingo) and Tabasco (Teapa) and 
Guatemala (Chocttim; Chiséc; Coban; sources of Rio de la Pasién; 
Kampamiac; Tactic; Nehaj, Quiché). 
Formicarius moniliger ScLatER, Proc. Zool. Soc. Lond., 1856, 294 (Cérdova, Vera 
Cruz, Mexico; coll. A. Sallé, now in coll. Brit. Mus.); 1858, 278, part (Vera Cruz); 
1859, 383 (Playa Vicente, Vera Cruz); Cat. Am. Birds, 1862, 191 (Oaxaca); Cat. 
Birds Brit. Mus., xv, 1890, 303, part (Cérdova, Vera Cruz; Oaxaca; sources 
Rio de Ja Pasiédn and Choctim, Guatemala).—Satvin, Ibis, 1861, 353 (Chiséc, 
centr. Guatemala); Proc. Zool. Soc. Lond., 1866, 75 (Mexico; Guatemala; 
monogr.).—Sumicurast, Mem. Bost. Soc. N.H., i, 1869, 556 (hot region Vera 
Cruz, up to 800 m.; habits; notes); La Naturaleza, v, 1881, 248 (do.).—Sat- 
@ Nine specimens. b Three specimens. 
Locality. Wing. | Tail. al Tarsus. ee 
MALES. 
Eight adult males from southeastern Mexico...............--.- 90.8 53.2 21.3 31.9 20 
One adult male from Guatemala..........----..--+---+---2ee-+ 89 50 21 30.5 19.5 
FEMALES. 
Two adult females from southeastern Mexico.................. 87.5 52.3 20.7 30 20 
One adult female from Guatemala.............2....2.2.2000025 92.5 56 20 33 20 
