151 
On some Papuan, Moluccan, and Sulu Birds. 
imal side of the attachment of the index digit, consists of an 
elongated osseous base, about 1*3 inch in length, slightly 
recurved towards the radius. The horny covering, which is 
shown in situ in the drawing (Sp), extends about *2 inch 
further. The second spur (Sp. 1) is exserted nearly in the 
same plane at the further extremity of the metacarpal ; 
it is not quite so long, measuring, together with the horny 
covering on it, about 1 inch in length, and is rather more 
flattened in shape and has but slight indications of backward 
curvature. Just in front of the first spur is situated the index 
digit (D. 1) ; it consists of a long first phalanx measuring 
about 1 inch in length, what is apparently a very short second 
or ungual phalanx measuring only 0*1 inch, and a slight 
pointed claw of about 0*2 inch in length attached to this 
phalanx. Thus the whole first digit, from the base to the 
extremity, measures 1*3 inch. 
Nothing can better illustrate the entire diversity, in origin 
and position, of the “ wing-spur ” and “ wing-claw 39 than 
this specimen. 
[To Tbe continued.] 
XX.— On some Papuan, Moluccan, and Sulu Birds. 
By T. Salvadori, C.M.Z.S. 
Through Dr. Nehrkorn’s kindness I have been able to 
examine some of the birds mentioned by him in his paper 
“ Zur Avifauna der Insel Waigiou” (Journ. f. Orn. 1885, 
pp. 30-35), and I have found, as I suspected, that some 
species have not been rightly identified. I should not have 
mentioned this if it had had no bearing upon the geographical 
distribution of some of the species; but this being the case, I 
think that it will be right to point out what those species 
really are. 
Cyclopsittacus aruensis, Nehrkorn, Journ. f. Orn. 1885, 
p. 31. 
Out of twenty specimens attributed to the above-men¬ 
tioned species, two have been presented by Dr. Nehrkorn to 
