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Show 578 COUNT SALVADORI O N BIBDS FBOM TIMOR-LAUT. [Dec. 2, GEOFFROYUS TIMORLAOENSIS, Meyer. Geoffroyus keiensis, Sclat. (nee Salvad.), P. Z. S. 1883, pp. 51, 200;'Forbes, P. Z. S. 1884, p. 431, n. 10. Geoffroyus timorlaoensis, Meyer, 1. c. p. 15. I have examined four typical specimens (two adult males, a young male, and a young female) of this species, which is really much smaller than G. keiensis1, and has the outer web of the first primary greenish rather than bluish ; but this difference is not very noticeable. Respecting the dimensions, G. timorlaoensis is intermediate between G. keiensis and G. aruensis ; as to the blue under wing-coverts, it is exactly like the first. Dr. Meyer goes on pointing out other minor differences between G. timorlaoensis and G. keiensis; but it seems probable that one more important difference, not mentioned by him, ought to be added ; as, having called Dr. Meyer's attention to the colour of the head of the females, he writes that it is never so dark in G. timorlaoensis as in G. keiensis. The female sent to me being a young one, with the head green like the neck, I have not been able to appreciate the value of this difference myself.. PACHYCEPHALA ARCTITORQUIS, Sclat. Pachycephala arctitorquis, Sclat. P. Z. S. 1883, pp. 55, 191, pi. xiii.; Meyer, 1. c. p. 34; Forbes, 1. c. p. 428. Four specimens examined: two adult males, a male moulting, and a female. Besides these, Dr. Meyer has sent me five typical specimens of his Pachycephala riedeli, of which two are marked male and female, while the other three are unsexed. M y impression is that these five specimens are the young of P. arctitorquis; but I may be wrong. Also, from Mr. Forbes's experience it would appear that P. riedeli is really the young of P. arctitorquis. ARTAMUS MUSSCHENBROEKI, Meyer. Artamus leucogaster, Sclat. (nee Salv.), P. Z. S. 1883, pp. 51, 195, 200 ; Forbes, P. Z. S. 1884, pp. 427, 432, n. 27. Artamus musschenbroeki, Meyer, op. cit. p. 30. Six typical specimens, which really differ from true A. leucogaster, as Dr. Meyer has pointed out. To the differences mentioned by him, I would add that the bill in all the six Timor-Laut specimens examined by me is constantly larger (0020-0*021 metre) than in A. leucogaster from Java, the Moluccas, New Guinea, Aru Islands, and Australia (0*017-0*019 metre). I wish also to mention that the white tips of the rectrices in the six Timor-Laut specimens inspected by me are rather conspicuous, so much so that it certainly would have not escaped my attention when I described A. leucogaster if present in this species as it is in A. musschenbroeki. 1 Mr. Forbes admits that the wing-measurements are less in Timor-Laut specimens, but, according to him, these have the total length greater than in G. keiensis; m y experience is quite the reverse, 67. keiensis beiug the largest in every respect. |