Order PASSERIFORMES. 
No. 541. 
Family SYLV1ID/E, 
GEOBASILEUS HEDLEYL 
DARK BROWN TIT. 
(Plate 453, two right-hand figs.). 
Acanthiza iredalei hedleyi Mathews, Austral. Ay. Rec., Yol. I., pt. 3, p. 78, June 
28, 1912 : Meningie, South Australia. 
Acanthiza iredalei hedleyi Mathews, Austral Av. Rec., Yol. I., p. 78, 1912 ; S. A. White, 
Emu, Yol. XII., p. 184, 1913. 
Acanthiza rosince Mathews, Austral Av. Rec., Vol. II., pt. i., p. 9, Aug. 2, 1913 : near 
Adelaide, South Australia. 
Geobasileus hedleyi Mathews, List Birds Austr., p. 219, 1913 ; P. E. Howe, Emu, Yol. XVI., 
p. 180, 1917. 
Geobasileus hedleyi hedleyi Mathews, List Birds Austr., p. 219, 1913. 
Geobasileus hedleyi rosince Mathews, id. ; F. E. Parsons, South Austr. Omith., Vol. IV., p. 51, 
1919 ; S. A. White, Emu, Vol. XIX., p. 81, pi. xix., 1919 ; Campbell, id., p. 161 
(error) ; Mathews, id., Vol. XX., p. 31, 1920. 
Distribution. Samphire Country in Southern South Australia. 
Adult male. General colour of the upper-surface dull olive-greeir including the hinder- 
crown, nape, back, scapulars, and outer aspect of wings ; the centres of the feathers 
of the bastard-wing, greater coverts, and primary-coverts dark browh, flight- 
quills also dark brown with whitish inner edges ; upper tail-coverts sulphur- 
yellow ; tail, blackish with obsolete cross-bars and white, or smoke-grey tips to 
the feathers ; fore-part of head dark brown with whitish margins to the feathers, 
which gives a scaled appearance ; sides of the face olive-green speckled with greyish- 
white ; base of fore-head and throat greyish-white ; breast, sides of body, abdomen, 
thighs, under tail-coverts, axillaries, and under wing-coverts ochreous-yellow ; 
under-surface of flight-quills dark brown with pale edges ; lower aspect of tail 
blackish with whitish tips to the feathers. Eyes light yellow, feet and bill black. 
Total length 90 mm. ; culmen 8, wing 54, tail 42, tarsus 19. Figured. Collected 
on the Heath Country near Meningie, South Australia, on the 28th of February, 
1912, and is the type of Geobasileus hedleyi (upper figure). 
Adult female similar to the adult male. 
Adult male. General colour of the upper-surface dull olive-green, including the top of 
the head, back, and wings ; bastard-wing, primary-coverts, centre of major-coverts, 
and inner webs of flight-quills blackish-brown ; tail also blackish-brown becoming 
paler at the tip and on the outermost feather on each side, the three outer feathers 
479 
