64 Recent Literature. [^" n k 



the trinomial nomenclature of the American zoologists of the present day 

 will prevent my discarding some of the old-fashioned, and, to me, expres- 

 sive zoo-geographical terms. I cannot understand why the word 'Nearctic 

 should be discarded." 



In the present brief paper (for so extensive a subject) our author does 

 not attempt to characterize his various areas by specifying their distinctive 

 ornithic elements, but he in a general way defines the boundaries of his 

 regions, and enumerates their principal subdivisions. His primary 

 divisions or 'Regions' are six in number, as follows: A, Nearctic; B, 

 Neotropical; C, Palcearctic; D, Ethiopian; E, Indian; F, Australian. 

 For the New World he thus adopts "the old divisions of the Nearctic 

 and Neotropical Regions." The Nearctic he subdivides as follows : — 



I. Arctic Subregion. 

 II. Alaskan Arctic Subregion. 



III. Aleutian Subregion. 



IV. Cold Temperate Subregion. 

 V. Warm Temperate Subregion. 



1. Humid Province. 



a. Appalachian Subprovince. 

 p. Austroriparian Subprovince. 



2. Arid Province. 



■y. Campestrian Subprovince. 

 8. Sonora Subprovince. 



These areas are practically the same as those designated by similar 

 names by the present writer, except that I, II, and III differ in grade 

 and allocation, ranking here as divisions of the second grade instead of 

 divisions of the very lowest grade, or below subprovinces. The incon- 

 gruity of his classification of the Arctic portion of the northern hemi- 

 sphere is further brought out under "C. — The Palcearctic Region," where 

 he says: "This may be divided roughly into three subregions, besides 

 the Arctic Zone, which corresponds with the same zone in the New 

 World, and becomes a circumpolar province." In other words, a "cir- 

 cumpolar province" is subdivided into four "subregions," which are 

 apportioned between two "regions." 



As regards the 'Neotropical Region,' or the "Southern Region of the 

 New World," it is divided into subregions and provinces much as has 

 been done by previous writers. The 'Palrearctic Region' is divided into a 

 'Eurasian Subregion' and a 'Mediterranean-Asiatic Subregion' ; "the one 

 answering to Mr. Allen's 'Cold Temperate Subregion,' and the other to 

 his 'Warm Temperate Subregion.' " Each of these is divided into three 

 'Provinces.' The Palaearctic is further subdivided into "III, Mantchurian 

 Subregion," and "IV, the Himalo-Caucasian Subregion," the latter also 

 with three provinces. 



The Ethiopian Region is divided into eight 'Subregions,' one, the South 

 African, having two Provinces. This classification is to a large extent 



