PROCEEDINGS 



OF THE 



UNITED STATES NATIONAL MUSEUM. 



1880. 



REVISIONS OF IVOlTIENCIiATITRE: OF CERTAIN NORTB AITIFRICAI^ 



RIRDS. 



By ROBERT RIDOW^AY. 



The following emendations of nomenclature apply both to species 

 enumerated in the latest published list of isTorth American birds — 

 Coues's " Check List,"* and others not contained therein. These two 

 series are therefore included in separate categories, the former having, 

 for convenience of reference, the corresponding number of the " Check 

 List " prefixed to each name. 



It is deemed inexpedient to give here a list of the species to be added 

 to the Smithsonian Catalogue of 1859,t for the reason that they are suffi- 

 ciently distinguished b}^ the absence of the concordant number following 

 each name, in the revised list following this paper. 



a. Species given in Coues's Check List. 



4 6. Turdus aonalaschkae, | Gmel. — In my refiort on the ornithology 

 of the fortieth parallel expedition I used the name " guttata, Pallas," 

 as the earliest name certainly applicable to this species; but I now 

 beUeve that Gmelin's name, Turdus aonalaschJcae, based upon the 

 Unalasclia Thrush of Pennant (Arctic Zoology, II, p. 338) and Aoona- 

 lashlca Thrush of Latham (Synopsis, II, i, j). 23), is the one which should 

 be used. A.s in the case of Muscicapa guttata, Pall., there can be no 

 doubt whatever that the western Dwarf Thrush ( Turdus nanus, Auct., 

 nee And.!) is the very species which these authors described under the 

 above names. Turdus aonalaschJcae being, therefore, the proper name 

 for tlie Hermit Thrushes collectively, the Middle and Eastern Province 

 forms should be called, respectively, T. aonalaschJcae auduhoni and T. 

 aonalaschJcae pallasi. With regard to the last, it is very evident that 



* A Check List of North American Birds. By Elliot Cones. Salem. Naturalists' 

 Agency. 1873. 8vo, pp. 137. (635 species.) 



tCatalogvio of North American Birds contained chiefly iu the Museum of the Smith- 

 sonian Institution. By Spencer F. Baird. [First octavo edition.] Washington: 

 Smithsonian Institution. 1859. ["Smithsonian Miscellaneous Collections, 108." Not 

 paged; 738 species, including varieties, all consecutively numbered.] 



t Small capitals indicate the name which is changed or emended. 



Proc. Nat. Mus. 80 1 Iflarcli '27, 1880. 



