THE BIRDS OF AUSTRALIA. 
included specimens commonly considered macrorhynchus, and macrorhynchus 
Gould he doubtfully ranked as a synonym of banksi typical. 
Ramsay, in 1888, recorded stellatus as a synonym of macrorhynchus , 
but as above noted, in 1891 used stellatus for naso, as did Salvadori, but I 
conclude without good reason. 
I also note that Ramsay, in 1878 and 1888, actually used stellatus in 
place of macrorhynchus, as different from naso, but in 1891 he used stellatus 
= macrorhynchus ? + naso. 
It may be here interposed that when Wagler proposed his C. stellatus 
he cited as a synonym : “ Banksian Cockatoo Lath. Synops. Suppl. 2. 
Fishly var., p. 92.” 
Latham’s “ fifthly,” as I have already noted, appears to have been 
founded upon the Watling Drawing No. 55, which is now missing, but which 
answers to a female or immature of the species. 
Salvadori quoted Latham’s “ fifthly ” as a doubtful synonym for stellatus, 
which he was using for the form from South-west Australia. 
All Watling’s drawings were made about Sydney, New South Wales, so 
that Latham’s “ fifthly ” could not refer to the West Australian form, but 
must be cited in connection with the typical ba?iksii from New South Wales. 
Calyptorhynchus banksii macrorhynchus Gould. 
Type-locality, Port Essington, Northern 
Territory. 
Range. North-west Australia and Northern Territory. 
I am still unable to differentiate satisfactorily the birds from North-west 
Australia from those of Northern Territory and Melville Island, though the 
bills of the former may be less massive. The bill formation I have found 
to be, comparatively-speaking, valueless, and cannot be used as a differential 
feature, save in conjunction with other characters. I have criticised and 
measured a series from North-west Australia, Northern Territory and Melville 
Island, without finding anything stable, save size. I have not been able to 
fix the coloration of the female as of any constancy, as some writers have 
averred. My measurements read : North-west Australia, $$, wing 420- 
437 mm., $$ 409-433 mm. ; Northern Territorj^, wing 420-445 mm., 
2 397 + mm. ; Melville Island, $$, wing 415-447 mm., $ 437 mm. The 
average measurements of all these, either taken separately or collectively, 
runs out about 430 mm., and, taken as a whole, the bill is larger than 
typical birds. It is possible that longer and better series may determine the 
presence of more subspecific forms in the range above given, but I have been 
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