8 4 



PATAGONIAN EXPEDITIONS I ZOOLOGY. 



lightest area being about the center of the lower surface of the body, 

 rapidly shading into dusky in every direction. 



More material may prove the Patagonian birds to be worthy of specific 

 rank and, as a geographical race or subspecies, it possesses much greater 

 claim than any of those which have been so discriminated. 



"Dr. Hartlaub, in describing Podilymbus antarcticus (Podiceps antarc- 

 tictts Less.) in his article in 'Naumannia,' does not appear to be aware 



FIG. 51. 



FIG. 52. 



Podilymbus podicipes. 8632. Princeton 

 University Collection. Profile of immature 

 female. Buenos Ayres. Natural size. 



Podilymbus podi- 

 cipes. 8630. Prince- 

 ton University Col- 

 lection. Foot of 

 adult male. Buenos 

 Ayres. % natural 

 size. 



that it is the same as P. brevirostris of Gray's 'Genera.' The error 

 appears to have occurred from it not being stated on the plate in the 

 'Genera' that the figure of P. brevirostris is reduced in size. The typi- 

 cal specimens of P. bremrostris were obtained in Chili by Mr. Bridges. 

 I cannot find any difference between them and specimens of a Podilym- 

 bus collected on the lakes of Atitlan in Guatemala by Mr. Salvin ; so that 

 it would appear that this species ranges all along the Andes into Central 

 America." (P. L. Sclater, P. Z. S., 1867, 337.) 



