SYSTEMATIC REVISION OF THE AUSTRALIAN THORNBILLS 107 
Acanthiza uropygialis kycheringi Mathews, Bull. Brit. Ornith. Club, 
xliii, 1922, p. 14; new name for preceding. 
Range. — South-western Queensland and extreme western New South 
Wales, west to inland mid-western Australia; north at least to Macdonnell 
Ranges and south to Eyre Peninsula. 
Specimens Examined. — Fifty-one from the following localities : South Aus- 
tralia: Nonning, Mt. Gunson, Gawler Ranges, Lake Gairdner, Kychering 
(type of G. u. erema ) , Ooldea, Musgrave Ranges, Ernabella, Everard Ranges, 
Oodnadatta. Central Australia : Macdonnell Ranges : Hermannsburgh, 
James Ranges. Western Australia : Naretha, Zanthus, Doodlakine, Keller- 
berrin, Jonesville, Yalgoo, Day Dawn, Lake Way. 
Measurements. — Fifty-one adult specimens of both sexes: wing, 48-54 
(50 9); tail, 35-43 (39 1); exposed culmen, 8-8 5 (8 3); tarsus, 16-18 
(16 05). 
Subspecific Characters. — Differs from typical uropygialis in its paler 
colouration throughout. Dorsal surface drab to hair brown, russet on crown 
almost lacking; under surface more distinctly white, the light drab on sides 
of breast and cinnamon buff on flanks much reduced. 
The name mellori is used for this form because of line 
priority. The original diagnosis, which is either incorrect or 
based on an abnormally coloured specimen, is as follows : 
“Differs from A. w. ruthergleni in its greyer upper colouration, only 
the head and upper back being greenish. South Australia (Eyre’s 
Peninsula) .” 
This quotation is repeated by Mathews in his Birds of Aus- 
tralia and in addition, a specimen, stated to be the type of 
mellori, is described in full with the “head, back, and wings 
mouse brown,” and the type locality given as “Murray Flats, 
S. Australia.” It will be admitted that mouse brown is closer 
to the drab colour of the dorsal surface than grey and greenish, 
but the Murray Flats, which is within the range of typical 
uropygialis as defined here, is considerably to the east of Eyre 
Peninsula and is separated from that area by both sea and 
land. 
The other subspecies named, in my opinion, are not separ- 
able. The specimens from which G. u. erema was described 
are im m ature. 
ACANTHIZA ROBU STIROSTRIS Milligan. 
Acanthiza robustirostris Milligan, Emu, iii, 1903, p. 71 ; Day Dawn, 
Western Australia. 
Acanthiza marianae S. A. White, South Aust. Ornith., ii, 1915, p. 45; 
Everard Ranges, Central Australia. 
Milligania robustirostris liberia Mathews, Aust. Av. Rec., iii, 1916, 
p. 61 ; Siberia Soak, Western Australia. 
Milligania robustirostris moorilyanna Mathews, Bull. Brit. Ornith. Club, 
xxxvi, 1916, p. 90; Everard Ranges, Central Australia. 
