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IFFERED widely from Didus and Pezophaps in its long beak, which resembles a little that of a woodcock, but is much stronger. These birds were high on the leg, ran swiftly, and were far removed from pigeons like the Dodo and the Solitaire, but to which they had a certain resemblance, owing to their rudimentary wings, apology for a tail, and the disposition of their digits."

The above is a translation of de Selys-Longchamps' diagnosis of the genus, but owing to his inclusion therein of Didus solitarius and Aphanapteryx bonasia, it does not fit when restricted to the "Oyseau bleu" of Le Sieur D.B. It might be described as: Resembling Aptornis, but with shorter bill and feet, thus more approaching Notornis.

One species.


 * Oyseaux bleus Le Sieur D.B., Les Voyages aux Isles Dauphine and Bourbon, pp. 170, 171 (1674).


 * Apterornis coerulescens Selys-Longchamps, Rev. Zool. 1848, p. 294.

HE original description of the Sieur D.B. (Dubois) is as follows (translated):—"Oyseaux bleus: As big as the Solitaires; they have the plumage entirely blue, the beak and the feet red and made like those of fowls; they do not fly at all, but run extremely quickly, so that a dog can hardly catch them; they are very good."

Habitat: Bourbon or Réunion.

Dubois gives the size of these birds as the same as that of a big goose and the feet as being like those of a fowl: I have, therefore, in reconstructing the plate of this bird, had it made intermediate in structure between the New Zealand Notornis and Aptornis, which were evidently its nearest allies.