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1. Accipiter novaehollandiae (Gmelin) On account of the particulars derived from literature about the differences between the "Rassenkreise" fasciatus and novaehollandiae it became evident that the three birds of prey secured by me on Rintja Island which is very close to the island of Komodo, belong to the latter species, certainly not to fasciatus. Though the original diagnosis of the subspecies sylvestris (Wallace10)) can be used rather well for the Rintja skins, this seems not sufficient to decide whether they indeed belong to this race. Also some other particulars compiled from literature did not suffice to conclude nor does the (rather scanty) material of novaehollandiae present in the Bogor Museum, consisting of two adults and one juvenile of the subspecies sylvestris, originating from Sumbawa and Flores. They all differ very distinctly from those Rintja birds, as does some material available in the Leiden Museum. The rather doubtful subspecies sumbaensis was not taken in consideration, because Stresemann8) and Mayr1) made it clear that the only specimen hitherto known of this race may be a hiogaster which was wrongly labelled, so that in accordance with Mayr no representatives of Accipiter novaehollandiae are known from the island of Sumba. When comparing the two Rintja skins of adult birds with both old sylvestris just mentioned, the differences are striking. The vinaceous tinge on the under surface is much darker in the Rintja material and the underlying tint lighter, causing much more contrast; the abdominal region and undertail-coverts too are more intensively barred. The tibial feathering is very dark, making the bars indistinct; the markings on the innerwing are darker too, causing very distinct bars on the wing-quills as is

On some strange birds from the islands of Komodo and Rintja between Sumbawa and Flores