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described as the adult female ; but the sex is not marked on the label, and it agrees perfectly 

 with the fifth specimen, which, from the structure of the feathers upon the flanks, is a 

 young bird. 



Count Salvadori has examined two specimens collected by Bruijn on the island of Petta, 

 one of the Sanghir group, and observes that, like the other Sanghir specimens, they differ from 

 those from other localities in their larger size and in the more olive-yellow colouring of their 

 abdomen. 



I have figured one of Dr. Meyer's adult male specimens from Siao, in company with the 

 male and female of A. celebensis, the upper figure representing the present species. 



