THE BIRDS OF AUSTRALIA. 
“ Differs from C. n. oweni in its smaller size and darker colour above; wing 
175 mm. (Type of C. n. oweni, 190 mm.).” 
Melville Island, Northern Territory. 
I introduced the genus Rogersornis for this fine form, and in my 1913 
“ List ” admitted : 
Rogersornis mwhalis nuchalis (Jardine and Selby). 
North Queensland. 
Rogersornis niLchalis melvillensis (Mathews). 
Northern Territory. 
Rogersornis nuchalis oweni (Mathews). 
North-west Austraha. 
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