THE GREATER SULPHUR-CRESTED COCKATOO. 



PlYCTOLOPHIS GALERirVS. VlFILI,. 



As an example of the second subdivision of the genus 

 Plyctolophus, or that in which the feathers of the crest 

 are folded on themselves, curved upwards, and elon- 

 gated into a sharp point, we select the species figured 

 above. We are not aware that any other representation 

 of this bird has yet been given, except that contained 

 in White's Journal of a Voyage to New South Wales, 

 in which it was first brought vmder the notice of zoolo- 

 gists. The ground of its plumage is purely white, with 

 a tinge of light yellow or brimstone colour on the crest, 

 the inner barbs of the wing and lateral tail-feathers, 

 and the inferior tail-coverts. The iris is dusky brown, 

 and the bill and legs grayish black. In size the bird is 

 somewhat less than the species last described, but the 



