578 COUNT SALVADORI ON BIRDS FROM TIMOR-LAUT. [Dec. 2, 



Geoffroyus timorlaoensis, Meyer. 



Geofroyus keiensis, Sclat. (nee Salvad.), P. Z. S. 1883, pp. 51, 

 200 ; 'Forbes, P. Z. S. 1884, p. 431, n. 10. 



Geoffroyus iimorlao'ensis, 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. keiensis 1 , and has the outer web of the first primary 

 greenish rather than bluish ; but this difference is not very noticeable. 

 Bespecting 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. Iimorlao'ensis 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, I. 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. My 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 inussche?ibroeki, 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 (0- 020-0-021 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. leuco- 

 gaster 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 ; my experience is quite the reverse, G. keiensis beiDg the largest 

 in every respect. 



