TREE-TIT. 
Acanthiza brevirostris Gray, Handl. Gen. Sp. Birds B.M., Vol. I., p. 220, 1869. 
Smicrornis brevirostris brevirostris Mathews, Nov. Zool., Vol. XVIII., p. 306, Jan. 31st, 
1912 ; id., List Birds Austr., p. 170, 1913. 
Smicrornis brevirostris pallescens Mathews, Nov. Zool., Vol. XVIII., p. 306, Jan. 31st, 1912 : 
Inkerman, Queensland; id., List Birds Austr., p. 170, 1913. 
Smicrornis brevirostris viridescens Mathews, Nov. Zool., Vol. XVIII., p. 307, Jan. 31st, 
1912 : Tailerr Bend, South Australia ; id., Austral Av. Rec., Vol. I., p. 57, 1912 ; 
id., List Birds Austr., p. 171, 1913 ; S. A. White, Emu, Vol. XVIII., p. 21, 1918 
(Vic.). 
Smicrornis brevirostris occidentalis Mathews, Nov. Zool., Vol. XVIII., p. 307, Jan. 31st, 
1912 : Broome Hi ll, West Australia ; id., List Birds Austr., p. 171, 1913. 
Smicrornis brevirostris flavescens Mathews, Nov. Zool., Vol. XVIII., p. 307, 1912 ; id . , 
List Birds Austr., p. 171, 1913 ; S. A. White, Trans. Roy. Soc. S.A., Vol. XXXVIII., 
p. 429, 1914 : Central Australia. 
Smicrornis brevirostris subflavescens Mathews, Nov. Zool., Vol. XVIII., p. 307, Jan. 31st, 
1912 : Alexandra, Northern Territory ; id., List Birds Austr., p. 171, 1913. 
Smicrornis brevirostris mungi Mathews, Nov. Zool., Vol. XVIII., p. 307, Jan. 31st, 1912 : 
Mungi, North-west Australia ; id., List Birds Austr., p. 171, 1913. 
Smicrornis brevirostris rogersi Mathews, Nov. Zool., Vol. XVIII., p. 307, Jan. 31st, 1912 : 
(Napier Broome Bay) North-west Australia ; id., List Birds Austr., p. 171, 1913. 
Smicrornis brevirostris stirlingi Mathews, Austral Av. Rec., Vol. I., pt. 2, p. 39, April 
2nd, 1912 : Stirling Ranges, South-west Australia ; id., List Birds Austr., p. 171, 
1913. 
Smicrornis brevirostris melvillensis Mathews, Austral Av. Rec., Vol. I., pt. 2, p. 39, April 
2nd, 1912 : Melville Island, Northern Territory ; id., List Birds Austr., p. 171, 
1913. 
Smicrornis brevirostris mathewsi S. A. White, Trans. Proc. Roy. Soc. South Austr., Vol. 
XXXIX., p. 749, Dec. 1915 : Wantapella Swamp, Central Australia. 
Distribution. Australia. Not Tasmania. 
Adult male. General colour of the upper-surface greenish-yellow including the hind-neck, 
sides of the neck, back, long upper tail-coverts, scapulars, and lesser upper wing- 
coverts ; median and greater upper wing-coverts, bastard-wing, primary-coverts 
and flight-quills pale brown with paler edges to the feathers ; rump apd short 
upper tail-coverts yellowish ; tail drab-grey with a dark subterminal band and a 
white blotch on the inner webs of the feathers at the tips ; crown of head grey 
tinged with yellow ; lores and a circle round the eye buffy-white ; ear-coverts 
similar ; throat whitish ; breast, abdomen, sides of the body, under tail-coverts, 
and axillaries lemon-yellow ; under wing-coverts white ; under-surface of quills 
pale brown with paler edges ; lower aspect of tail darker than the flight- quills, 
with a white mark on the inner web at the tips of the feathers. Eyes very pale 
yellow ; feet and tarsus pale leaden-brown ; upper mandible pale brown, lower 
white. Total length 95 mm. ; culmen 6, wing 51, tail 35, tarsus 18. Figured. 
Collected at Point Torment, North-west Australia, on the 18th of February, 1911, 
and is Smicrornis brevirostris rogersi. 
Adult female. General colour above olive-green including the top of the head, hind- 
neck, entire back, scapulars, wings and tail, becoming ochreous on the upper tail- 
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