YELLOW-RUMPED TIT. 
Acanthiza 'pallida Milligan, Emu, Vol. III., p. 112, Oct. 1, 1903 : Yalgoo, Murchison, 
West Australia; 
Not 
Acanthiza pallida “Temm” Finsch, Notes Leyden Mus., Vol. XX., p. 134, Sept. 1898. 
Milligan, Emu, Vol. IV., pp. 3 and 9, 1904. 
Acanthiza leighi Grant, Bull. Brit. Orn. Club, Vol. XXIII., p. 73, May 7, 1909 : Lithgow, 
New South Wales. 
Acanthiza chrysorrhoa chrysorrhoa Mathews, Nov. Zool., Vol. XVIII., p. 351, 1912. 
Acanthiza chrysorrhoa sandlandi Mathews, ib., Jan. 31, 1912: Victoria; id., Austral. Av. 
Rec., Vol. I., p. 59, 1912. 
Acanthiza chrysorrhoa leachi Mathews, ib., Tasmania ; id., Austr. Av. Rec., Vol. I., p. 59, 
1912. 
Acanthiza chrysorrhoa perlcsi Mathews, ib., South Australia. 
Acanthiza chrysorrhoa multi Mathews, ib., Wilson’s Inlet, West Australia. 
Acanthiza chrysorrhoa pallida Mathews, ib. 
Acanthiza reguloides squamata Mathews, ib., p. 352. 
Acanthiza chrysorrhoa addenda Mathews, Austral. Av. Rec., Vol. I., pt. n, p. 44, April 2, 
1912 : Port Augusta, South Australia. 
Geobasileus chrysorrhous chrysorrhous Mathews, List Birds Austr., p. 218, 1913. 
Geobasileus chrysorrhous sandlandi Mathews, ib. ; Belcher, Birds Geelong, p. 278, 1914. 
Geobasileus chrysorrhous leachi Mathews, ib. 
Geobasileus chrysorrhous perksi Mathews, ib. ; S. A. White, Emu, Vol. XVI., pp. 13, 75, 
1916. 
Geobasileus chrysorrhous addendus Mathews, List Birds Austr., p. 218, 1913 ; S. A. White, 
Emu, Vol. XIV., p. 189, 1915; id., ib., Vol. XV., p. 160, 1916; Ashby, ib., 
Vol. XVI., p. 234, 1917. 
Geobasileus chrysorrhous multi Mathews, List Birds Austr., p. 218, 1913. 
Geobasileus chrysorrhous pallidus Mathews, ib. ; Mellor, Emu, Vol. XX., p. 139, 1921. 
Geobasileus chrysorrhous squamatus Mathews, List Birds Austr., p. 218, 1913. 
Geobasileus chrysorrhous normantoni Mathews, Austral. Av. Rec., Vol. II., pt. 4, p. 76, 
Dec. 29, 1913 : Normanton, Gulf of Carpentaria, Queensland. \\ 
Geobasileus chrysorrhous ferdinandi Mathews, Bull. Brit. Om. Club, Vol. XXXVI., p. 90, 
July 7, 1916 ; Glen Ferdinand, Musgrave Ranges, Central Australia. 
Geobasileus chrysorrhous alexanderi Mathews, Austral. Av. Rec., Vol. IV., pt. 6, p. 137, 
Aug. 1, 1921 : new name for Acanthiza pallida Milligan as above. 
Distribution. Extra- tropical Australia and Tasmania, extending northward to Herberton 
and the Gulf of Carpentaria on the East, but not yet from North-west Australia. 
Adult male. Fore-part of head blackish with white tips to the feathers, which becomes 
paler and inclining to grey on the hinder portion ; mantle, back, scapulars, and 
upper wing-coverts yellowish-olive ; bastard-wing, primary-coverts, and flight- 
quills hair-brown with pale edges to some of the feathers ; rump and upper tail- 
coverts bright yellow, like the under tail-coverts, sides of body, axillaries, and 
under wing-coverts ; base of tail yellow, terminal portion blackish with whitish 
tips to the feathers ; base of fore-head and throat white tinged with buff, like the 
YOL. IX. 
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