On the Synonymy of some Palcearctic Birds. 89 



Swinhoe's Thrush [Turdus hortulorum Sclater) breeds in 

 Eastern Siberia, but, so far as I can ascertain, its eggs have 

 not hitherto been figured. Its nest is constructed of grass- 

 bents, plant-stems, and rootlets, lined with similar but finer 

 materials, and is placed on a tree. The eggs figured (PI. III. 

 figs. 7, 8, 9) are from a clutch of five, obtained near Amur 

 Bay, Eastern Siberia, by Messrs. Dorries. 



The Pale Thrush [Turdus pallidas Gmel.) likewise breeds 

 in Eastern Siberia, and possibly also in Japan ; it occurs 

 in Mongolia, Manchuria, and Corea on passage, and winters 

 in China. Its nest is placed on the branch of a tree, and is 

 constructed of roots of Vacclnium,, dry herbs, grass, moss, 

 and pine-needles; it is lined with fine grass-bents, and four 

 or five eggs are deposited in June. Those figured (PI. III. 

 figs. 10, II, 1,2) are from a clutch of five obtained near Amur 

 Bay by Messrs. Dorries on the 3rd of June. The eggs of 

 this Thrush have been described by Taczanowski, but do not 

 appear to have been figured. 



The eggs of Tardus naumanni which I have figured are 

 from the collection of Mr. Hugh L. Popham ; for the loan 

 of all the rest I have to thank Dr. Bianchi, of the Museum 

 of St. Petersburg. 



EXPLANATION OF PLATE III. 

 Figs. 1. '2. '■'>. 6. Eggs uf Turdus naumanni, p. 88. 

 ,, 4, 5. „ „ auritus, p. 88. 



., 7. 8, '■•. ,, „ Tiortulorvm, p. 89. 



.. 10, 11,12. „ „ pallidus, p. 89. 



VII. — Notes o/i llw Synonymy of some Palaearctic Birds. 

 By II. E. Dkkssek, E.Z.S. 



When I was recently at Sarajevo, in Bosnia, Mr. Othniar 

 Reiser called my attention to a work on the Balkans, by the 

 late Johan von Frivahlsky, entitled ' Balkanyi Termeszettu- 

 domanyi Utazsisrol, Budan, 1838/ in which the following 

 description is given of the Collared Turtle-Dove (p. 30, 



