Recent Literature. 
iyi 
Ckondestes grammica , stigata , Buteo borealis socorroensis as new races, 
and Tinnunculus sfarverioid.es , Thrasaetus ftarfyia , and Actodromas 
acuminatus as additions. (c) Genera described or added since 1859, an d 
generic names orthographically emended since that date. Under this 
heading are briefly discussed the status and history of three “genera” 
among the Thrushes, including a defence of Merula as a generic designa- 
tion for our common Robin, and the genera Myiodioctes , Ulula , etc. (d) 
Species included which are not yet known to have been taken within the 
prescribed limits, (e) Old World species of regular occurrence in Green- 
land or merely casual visitants to Eastern North America, (f) “ Palse- 
arctic ” and oceanic species occurring in Alaska or on other parts of the 
Pacific coast. (g) “ Palsearctic ” species found in both Greenland and 
Alaska but not at intermediate points, (ft') Tropical American species 
occurring only in the southern portions of the United States. ( 7 ) Sup- 
posed valid species described by Audubon and Wilson, but not since met 
with, and of which there are no known specimens extant, (J) Untena- 
ble species and races described since 1858. (ft) Exotic species apparently 
wrongly attributed to North America. ( 1 ) Partial list of foreign birds 
which have been introduced, or which have been captured after escape 
from confinement. Each of these lists is appropriately annotated, the an- 
notations varying in character with the special requirements of the several 
categories, and the information thus succinctly presented is not only of the 
most useful and interesting kind, but hard to find when wanted without this 
admirable index of references. 
The “Addenda” gives, first, a commentary on 6 species, 4 of which are 
supplementary to those contained in the Catalogue itself. Then follows a 
list of the families of North American birds, with the number of genera 
and species of each recorded in the Catalogue, and finally a “ Concordance” 
of the two Catalogues of 1859 a °d 1881, in which the corresponding 
numbers of each are given in parallel columns.* There is also an “Index 
to the Genera.” 
As already noted, the present “ Nomenclature ” is a “revised edition” 
of Mr. Ridgway’s “ Catalogue ” of a few months’ earlier date. But it 
should be added that in a footnote to page 5 of the present work is given 
a schedule of the more important changes from the first edition, which 
embrace a new introduction, various changes of generic, specific, and 
English names, and corrections of authorities. The work is exceedingly 
free from typographical errors, and in every way evinces the exercise of 
the utmost care in its preparation. — J. A. A. 
Ridgway’s Revised Catalogue of the Birds of Illinois, f — The 
present catalogue is based primarily upon the same author’s “ Catalogue 
* The numbers of the old catalogue are also given in the new, following the English 
names and enclosed in brackets. 
t A Revised Catalogue of the Birds ascertained to occur in Illinois. By Robert 
Ridgway. Illinois State Laboratory of Natural History. Bulletin No. 4. Bloomington, 
111 ., May, 1881. 8vo. pp. 161-208. 
