Recently published Ornithological Works. 129 



regret to find that we made a great error in our previous 

 notice of this work (Ibis, 1893, p. 584) in attributing Prof. 

 Newton^s adoption of these views to the influence of American 

 writers, for Prof. Newton assures us that he has held them for 

 years, and upon referring to Heilprin^'s ' Geographical and 

 Geological Distribution of Animals ' we find that the author 

 designates the " Holarctic Region " in accordance with a sug- 

 gestion received from " Prof. Newton, of Cambridge." We 

 therefore tender him our best apologies for this mistake. But, 

 after all, we are pleased to find that the divergence between 

 us on this point is a mere matter of degree, as in Prof. New- 

 ton^s essay the " Holarctic ■" Region is immediately divided 

 into the Nearctic and Palrearctic Subreuions. The objection 

 to Prof. Newton^s mode of treatment of a confessedly difficult 

 question is that such types as the Tyrannidse, Icteridse, and 

 Vireonidse, which are altogether foreign to the whole of the 

 Old World, are thereby admitted into the circle of its 

 avifauna. A more reasonable view, in our opinion, is to 

 admit that the Nearctic Area, while it has been materially 

 modified by incursions from the Palsearctic and Neotropical 

 Regions, has still an important autochthonous element^ and 

 may fairly be kept separate from both of them. 



11. Oustalet on Birds from India, Tibet, and China. 



[Sur quelqiies Oiseaux de I'lnde, du Tibet et de la Chine. Par E. 

 Oustalet. Bull. Soc. Zool. France, xviii. p. 17 (1893).] 



Two singular varieties of the Impeyan have been dis- 

 covered by a Parisian feather-dealer in the stores of London. 

 Upon these M. Oustalet proposes to establish two subspecies 

 — Lophophorus impeyanus var. mantoni and L. imp. var. 

 obscura. He likewise refers the so-called Palceornis derby - 

 anus of Chinese Tibet and Western Szechuen (Ois. de la 

 Chine, p. 1, pi. i.) to a new species as Palceornis salvadorii, 

 Count Salvadori having convinced him that the previous 

 identification was erroneous. See the lattcr's remarks on 

 this subject in the 'Catalogue of Parrots' (Cat. B. xx. 

 p. 464). 



SER. VI. VOL, Tl. K 



