This curious form differs from G. fortis fortis (Charles Island!) in its bill, which is bowed in towards the end of the upper mandible, and slightly "toothed" on its cutting edge. The one specimen in the British Museum certainly came from Charles Island, and we may, therefore, conclude that the other also came from there, and there is certainly no reason to think that it came from Chatham Island. As the skins in the British Museum slightly differ from each other, there is some reason to suspect that they are both aberrations of G. fortis fortis. Otherwise it must have become extinct, as, in spite of special attention being paid to it, none of the recent collectors met with G. dentirostris.
POMAREA NIGRA (SPARRM.)
Muscicapa nigra Sparrmann, Mus. Carlson. I, pl. 23 and text (1786—Society Islands).
Pomarea nigra Sharpe, Cat. B. Brit. Mus. IV, p. 434 (1879—Full synonymy, description, etc., Society Islands, Marquesas group).
In the list of birds now fully extinct, in the Proceedings of the Fourth Intern. Orn. Congress, I enumerated Pomarea nigra, on the strength of E. L. Layard's statement, P.Z.S. 1876, p. 501, who says: "This bird has undoubtedly become extinct. Large sums have been offered by Messrs. Godeffroy's collectors for the acquisition of a single specimen, but in vain! The very old natives say they remember the bird and call it "Moho."
I, however, overlooked the fact that this note of Layard's referred to the Friendly Islands only, and that this bird has afterwards been obtained in numbers on the Marquesas group. It would, nevertheless, be very interesting to compare specimens from the various islands, viz.: the Society group, Marquesas and Tongatabu, to see if they are perfectly similar.
MIRO TRAVERSI BULLER.
(Plate [5], Fig. 1.)
Miro traversi Buller, B. New Zealand, Ed. I p. 123 (1873—Chatham Islands).
Petroeca traversi Hutton, Ibis 1872, p. 245.
Myiomoira traversi Finsch, Journ.-f.-Orn. 1874, p. 189.
Miro traversi Sharpe, Cat. B. Brit. Mus. IV p. 236 (1879).
Miro traversi (partim) Buller, Suppl. B. N. Zealand II p. 125? pl. XII (October, 1906).