24 



VISCOUNT WALDEN OX THE BIRDS OF CELEBES. 



as foi-ming along with Celebes a separate zoological subarea. But I propose in the 

 following list to include only those species of birds which are known to inhabit the 

 island of Celebes itself. A more definite and more accurate idea of the peculiarities 

 of the Celebean ornis will thus be presented, than if genera which occur in the Sula 

 Islands were placed side by side with Celebean genera. If we threw together the ornis 

 of the Sula Islands with that of Celebes, we should find non-Celebean genera (such 

 as Criniqer, Ceyx, Platycercus, FacJrycephala, and Monarcha) appearing in the list, and 

 the really anomalous character of the Celebean avifauna actually existing on the main 

 island would thereby be apparently greatly modified. 



Mr. Wallace [op. cit. i. p. 425) has estimated the number of known Celebean species 

 of birds at one hundred and ninety-one. I have only been able to add two more to that 

 number ; yet there are doubtless many more species represented by Celebean examples 

 in the museums of Europe. On the other hand, many species have been described as 

 possessing a Celebean origin which most assuredly do not occur in the island. 



To give a clear idea of the geographical relation of the Celebean avifauna I have 

 thrown its one hundred and forty-eight genera into tables, and classed them according 

 to the regions and subregions they may be said to belong to. The geographical cha- 

 racter of a genus has been determined according to the area which possesses the pre- 

 ponderating number of species. Thus Artamus is classed as an Australian genus, 

 because at least thirteen species of it occur within the Australian region, while one 

 only is peculiar to the Indian ; Arachnothera as an Indian genus, although one species 

 is found in New Guinea. 



By means of these tables it will be seen that thirty-seven Indian genera occur in 

 Celebes ; of these, three are peculiarly Indo-Malayan. 



Table I. — Showing the Indian genera found in Celebes. — N.B. Those peculiar to 

 the Indo-Malayan subregion are marked with an asterisk. 



Poliornis. 



Spilornis. 



Polioaetus. 



Limnaetus. 



Neopus. 



Lophospiza. 



Ephialtes. 



Loriculus. 



Yungipicus. 



MuUeripicus. 



The next table consists of the twenty-three Australian genera which are also Celebean. 

 Two of these appear to be peculiar to the Australian subregion ' ; of the remainder some 

 are Papuan, and some extend into the Polynesian subregion. 



' Conf. Sclater, P. Z. S. 1869, p. 125. 



