Dr. J. B. Steere — Philippine Ornithology. 303 



The genera most relied upon for the establishment of these 

 divisions were Loriculus and Prioniturus among the Parrots ; 

 Thriponax and Chrysocolaptes among the Woodpeckers; 

 Actenoides and Ceyx among the Kingfishers ; Buceros, Cra- 

 norrhinus, and Penelopides among the Hornbills ; and Arta- 

 mides, Dicrurus, Irena, and lole. Though these genera are, 

 perhaps, the most uniformly distributed through the Sub- 

 provinces, with local species in each Sub-province, many- 

 other genera corroborate the same theory. 



The little island of Siquijor, south of Cebu, and between 

 that island and Mindanao, seems to be a remnant of another 

 Sub-province, now nearly swallowed up by the sea. The 

 presence of a distinct species of Dicmum and of very well- 

 marked species of lole and Loriculus limited to the space of 

 a few miles square, seems most readily explained in this way. 

 The Philippine Islands are all volcanic, and their shores 

 show signs of frequent changes of sea-level, which, on account 

 of the shallow channels that separate the islands, would 

 work rapid and extensive changes of the land-surface of the 

 group. 



Altogether the Steere Expedition obtained examples of 3 

 species of birds in the Philippines, of which 53 appear to be 

 new to science. I have already given a preliminary list of 

 the birds in a pamphlet published at Ann Arbor on July 

 14th, 1890*. In order to make the new species better known, 

 I have accepted the offer of the Editor of ^The Ibis' to 

 restate their characters, and to give illustrations of two of 

 the principal novelties. 



1. Prioniturus luconensis, sp. nov. {Op. ait. p. 6.) 

 Adult male and female. — General colour above and below, 

 including the head, bright yellow-green. 

 Hab. Marinduque, Luzon. 



* A List of the Birds and Mammals collected by the Steere Expedition 

 to the Philippines, with Localities, and with brief preliminary Descrip^ 

 tions of supposed new Species. By J. B. Steere, Ph.D., Professor of 

 Zoology in the University of Michigan. Ann Arbor, Mich 1890. 

 8vo. 30 pp. 



Y 2 



