22 Mr. J. A. Harvie Brown on the 



mention of having taken the eggs of a Siberian species of 

 Thrush in the Archangel Government in June 1865, the eggs 

 like small specimens of those of T.musicus^ and shot the female ; 

 but he makes no mention of this rarity in the paper published 

 in the same journal in 1873. Without an examination of this 

 latter specimen and its eggs, we have no data upon which to 

 admit it, as Herr Goebel does not give it any name. 



(24) {Erythaca ruhecula (L.).) No number. 



The only records of the occurrence of this species are given 

 by Herr Goebel, who twice instances its breeding at Archan- 

 gel, and records that he himself took or obtained the eggs 

 when there. I cannot help regretting, however, that he does 

 not, in this and in many other instances, more fully authen- 

 ticate his observations, in cases especially where previous 

 writers have failed to observe the species under consideration. 

 I may add that the Robin has never been recorded, to my 

 knowledge, from North Russia (within our present limits) 

 since Herr Goebel's records ; and I am obliged therefore, reluc- 

 tantly, to place it amongst the most doubtful records. 



(25) {Pi-atmcola ruMcola (L.), andP. «W/ca, Blyth.) No. 102. 



After careful searching I find that only one record of any 

 Stonechat has been given from the north-central district, viz. 

 that of " F. ruMcola,''^ in the lists of Piottuch's collec- 

 tions, alongside with " P. rubetra.^^ The species obtained 

 . on the Petchora by Seebohm and myself, however, being P. 

 indica^ I believe that upon examination this specimen will be 

 found to belong to the latter, and probably occurred at Archan- 

 gel in autumn on migration. I therefore place rubicola in the 

 table in brackets, and place a query opposite indica in 

 the column for the N.C District. This appears to be 

 further justified by the absence in any lists I have examined 

 of P. rubicola or P. indica in the Scandinavian peninsula or 

 in Finland, and by their further absence in the SOUTHERN Di- 

 vision of North Russia. 



I may here mention that an easy means of distinguishing 

 P. indica from P. rubicola will be found on comparing the 

 axillary feathers under the wings of the two species, the pre- 

 vailing colour in indica being black, but in rubicola white — 

 indica having the axillaries faintly and narrowly edged with 

 white, rubicola^ on the other hand, having them distinctly and 

 broadly edged with white, which gives them a much whiter 

 appearance. 



