233 
with brown. They measure 1:06 inch by 0:80 inch, 1:16 by 0:80, and 1:12 by 0:82" (Proc. 
U.S. Nat. Mus. ix. p. 610). 
Adult male. General colour above olive-brown, with a slight ashy tint, especially towards the 
rump and upper tail-coverts; the tail dark sepia-brown, distinctly washed with ashy; wing-coverts 
like the back; bastard-wing, primary-coverts, and quills sepia-brown, washed externally with 
ashy-olive; crown of head like the back; sides of face and ear-coverts dusky olive-brown, a little 
more dusky on the lores, the cheeks with hardly any white spots; chin and upper throat dull white, 
narrowly streaked with triangular spots of dusky brown; lower throat, fore-neck, breast, sides of 
body, and thighs uniform dull earthy-brown, slightly tinged with olive; abdomen and under tail- 
coverts white, the latter with brown margins near the base; axillaries and under wing-coverts very 
pale orange-buff, the coverts round the bend of the wing ashy-brown; quills dark sepia-brown below, 
with a slight tinge of ashy-buff along the inner webs: * bill and feet very clear brown ; iris dark 
brown ; bare space round the eye yellow” (Léotaud). Total length 8:5 inches, culmen 0:9, wing 4:9, 
tail 9:6, tarsus 1:2. 
It must be noticed that Mr. Ober gives the colour of the iris as “ wine-red " and the bill as 
“ olive-green, tipped with yellow." As the bill in preserved specimens is parti-coloured, it seems 
probable that the latter description is correct. 
The olive-backed specimens I believe to be birds in freshly moulted plumage, for it is 
evident that the olive tint becomes abraded and the general tone of the upper parts fades to а dull 
earthy-brown, while the underparts are similarly affected, and the colour of the breast and flauks 
becomes decidedly paler and clearer brown. 
Young birds have the same colours as the adults, but have mesial shaft-streaks of buff on the 
feathers of the upper parts, while the wing-coverts have small spots of orange-buff at the tips; the 
bare eye-patch is well-marked, but the bill is entirely horn-colour, though paler towards the end ; the 
throat and under surface of the body are mostly buff, a little more orange on the chest, which is 
obscured by dusky brown edges to the feathers ; the abdomen is ashy-whitish, the under tail-coverts 
being buffy-white with the outer web almost entirely brown. 
The descriptions have been taken from specimens in the British Museum, and the species is 
figured on the same Plate as T. leucomelas from a Guiana specimen in the Seebohm Collection. 
ГЕ. В. 8 
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