APPENDIX 



I. Eevised List op the Birds knoion to occur in the Philippine Isl.\nds, shoimng their Geo- 

 graphical Distribution. Compiled hy The Editor from the foregoing writings and those 

 of Mr. E. B. Sharpe (Trans. Linn. Soc. ser. 2, vol. i. pp. 307-355, and P. Z. S. 1879, 

 pp. 311-317). 



In this list the islands of Palawan, Balabac, and the Sulu archipelago have been included in the 

 Philippine area, from which they were excluded by Lord Tweeddale in his memoir (Trans. Zool. 

 Soc. ix. p. 125). It has been thought best, more for the sake of convenience than from any fixed 

 opinion as to whether these islands belong, zoo-geographically speaking, to the Philippines or to 

 Borneo, to include the species recorded from those islands which are not found, so far as is 

 known, in the Philippine area as restricted by Lord Tweeddale. These species are 43 in 

 number and have an asterisk prefixed to their titles. 



In the manuscript of an introduction to a revised list of Philippine birds, of which Lord 

 Tweeddale was apparently contemplating the publication shortly before his death, he still excludes 

 Palawan, Balabac, and Sulu, on the grounds that insufficient evidence existed to show a Philip- 

 pine rather than a Bornean affinity in the ornis of those islands, and also that, from the reports 

 on the collections formed there by Mr. A. H. Everett and Dr. Steere, it was proved that Bornean 

 genera and species were rather in the preponderance. 



The Marquis of Tweeddale (then Viscount Walden) enumerated 218 species in his original 

 memoir (/. c.) as inhabitants of the Philippines. From tliis number two must be deducted, viz. 

 (23) Circus ceruginosus and (97) Crateropus caudatus. One has to be added, viz. (6«) Loriculus 

 occipitalis, leaving a total of 217. 



Since then the number of species in the area, as restricted, has been raised to 336, which, 

 including the 43 recorded from Palawan, Balabac, or the Sulu archipelago, gives a grand total 

 of 379. 



From this amended total it may be found necessary to deduct 19 species, which are either 



4p 



