86 CHESTED COOT. 



My figure of the egg is also that of one obtained by 

 Mr. Tristram at Lake Halloula, and kindly, with many 

 others, placed at my disposal for illustration in this 

 work. 



The genus Podiceps would, in the natural order, 

 follow here. There are, however, none which I can 

 introduce into this w^ork. The only species which may 

 be considered to have a claim are the following, intro- 

 duced without reason, I think, into the European lists. 



Podiceps cornutus arcticus, Schlegel. — The Arctic 

 Grebe is not, as far as I can perceive, in any v/ay 

 distinct from the Sclavonian Grebe, (P. cornutus, 

 Latham.) A specimen sent me by Mr. Tristram differs 

 in no respect whatever from that bird. Li a long 

 article by Kjarbolling, in "Naumannia," 1854, p. 307, 

 et seq., entitled "Notes on the Ornithology of 1853-4," 

 the question of the specific identity of the two birds 

 is very ably treated. Dr. K. arrives at the conclusion 

 that the so-called P. cornutus arcticus is only the 

 female of P. cornutus, Latham. Therefore, he says, 

 P. arcticus must be struck out of the European lists. 



Podiceps longirostris. — A so-called species, said by 

 Prince Bonaparte to inhabit the Island of Sardinia, 

 having the size of P. cristatus and the plumage of 

 P. ruhrioollis, v/ith a beak longer than the tarsus. I 

 must confess my entire disbelief in either of these 

 birds as distinct species. The Podiceps nigricollis of 

 Sanders is the P. cor7iutus of Latham. 



