WHITE-BROWED BABBLER. 
completed some time before. In 1908 they were very late, the first completed 
nest I found being on July 23rd ; in fact, it was scarcely completed, as the 
birds were putting a little more lining into it. In 1902, which was a very dry 
year, as was 1907, I knew of young out of the nest by the end of June.” 
The systematic history of this species is brief but not without interest, 
as this species shows variation like the preceding, but, of course, with its more 
limited range to a less extent. 
In 1911 I separated the form from South-west Australia as : 
Pomatostomus super ciliosus aslibyi Mathews 
on account of its larger size, the bill being conspicuously longer, and the 
generally lighter coloration of the upper parts. 
The next year I added : 
Pomatorhinus superciliosus gilgandra Mathews. 
“ Differs from P. s. superciliosus in being much darker above, especially 
on the head. Gilgandra, Northern New South Wales,” 
and 
Pomatorhinus superciliosus gwendolence Mathews. 
“ Differs from P. s. ashbyi in being much smaller in the wing, viz., 74 mm. ; 
typical P. s. ashbyi , wing 87 mm. Carnarvon, West Australia.” 
Since then nothing has been added, and the subspecies have received 
acceptance from independent critics, so that we have, as given in my 1913 
“ List ” : 
Morganornis superciliosus superciliosus Vigors and Horsfield. 
South Australia ; Victoria and Southern 
New South Wales. 
Morganornis superciliosus gilgandra Mathews. 
Northern New South Wales. 
Morganornis superciliosus ashbyi Mathews. 
South-west Australia. 
Morganornis superciliosus gwendolence Mathews. 
Mid-west Australia. 
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