486 THE GREBES. 



says, in the southern and central parts of Sweden ; P. 

 auritus, Auct, said to be confined to the southern and 

 eastern portions of Sweden, but everywhere scarce; and 

 P. arcticus, Boie, which seems to inhabit the whole of the 

 peninsula, although more common in the northern and 

 north-western parts. 



By the Proceedings of the Academy of Sciences at Stock- 

 holm, 1849, it would, however, appear that Professor C. S. 

 Sundevall has cleared up to the satisfaction of some, at 

 least the mystery that has for a long period hung over 

 these species. The P. arcticus and P. cornutus are, the 

 Professor says, one and the same species, and no other than 

 the P. auritus, Linn. : the P. arcticus is the bird in the 

 summer dress, and the P. cornutus when in its spring dress. 

 The reason, he goes on to say, of these designations having 

 been adopted was, that Linnaeus' auritus was transferred to 

 the P. auritus, Lath., which bird does not belong to the 

 Scandinavian fauna. Instead, therefore, of the three species 

 in question, there is only one, and that is the P. auritus, Linn.* 



P. auritus, Lath., is another species, which has nothing 

 whatever to do with the Swedish fauna (although found in 

 Schleswig and Jutland, according to Kjaerbolling) , and respect- 

 ing which Latham has committed a mistake, in having con- 

 founded it with the P. auritus, Linn. P. auritus, Lath., 

 being therefore without a proper designation, Prof. Sundevall 

 has given it another namely, P. nigricollis, Sundevall. 



The Northern Diver (Is-Lom, or Ice-Lorn, Sw. ; Colymbus 

 glacialis, Linn.) was very rare in the neighbouring Skargard. 



* Kjserbolling, it should be remarked, assumes P. cornutus, Lath., to be a 

 distinct species, and considers P. arcticus, Boie, as identical with P. auritus, 

 Faber, and Colymbm auritus t Linn. 



