Variations in the Colouring of Golymbus. 527 



melanism; except, and this is most remarkable, the crest or tuft 

 on each side of the nape, which is albinistic. This extra- 

 ordinary Grebe stayed about a week in the company of eight 

 normal Golymbus cristatus, and I saw it three times before I 

 could shoot it, and at first took it for Phalacrocorax pygmaeus. 

 I describe the colouring* of this specimen as follows : — 



General colour quite black, partially brownish-black, the 

 head and the back being the darkest ; the frill round the throat 

 and neck slightly metallic green and glossy ; the under 

 surface has a silvery shine through the dark general colour ; 

 almost all the feathers on the crest or tuft on each side of 

 the nape are white, except a few black ones ; the bill, legs, 

 and feet are horn-black, the iris is dark brown. 



All these specimens are in the collection of my cousin, 

 B. de Meszleny, except the albinistic and erythristic 

 Golymbus cristatus, which adorns my own collection. 



Koszeg, 1905. VI. 7. 



