24 , ALLEN'S NATURALIST'S LIBRARY. 



often found. When fresh they are of a greyish-green colour, 

 but fade to dull green or olive-green. 



Down. Greyish-white, with filamentous tips of the same 

 colour, and a large but not very conspicuous spot of white in 

 the centre. 



THE BUFFEL-HEADS. GENUS CHARITONETTA. 



Charitonetta, Stejn. Bull. U.S. Nat. Mus. No. 29, p. 183 (1863). 



Type, C. albeola (Linn.). 



Count Salvador! does not separate the Buffel-heads from the 

 Golden-eyes, though he admits the difference in the style of 

 their plumage, and the structural character of the nostrils, 

 which are situated nearer to the base of the bill than to its tip, 

 being exactly the opposite to the features of the nostril in the 

 genus Clangula. In my opinion, therefore, the genus Charito- 

 netta should be recognised. 



I. THE BUFFEL-HEADED DUCK. CHARITONETTA ALBEOLA. 



Anas albeola, Linn. Syst. Nat. i. p. 199 (1766). 



Clangula albeola, Macg. Br. B. v. p. 185 (1852); Dresser, B. 



Eur. vi. p. 589, pi. 439 (1877); B. O. U. List Br. B. 



p. 132 (1883); Saunders, ed. Yarr. Br. B. iv. p. 442 



(1885); id. Man. Br. B. p. 441 (1889); Salvad. Cat. B. 



Brit. Mus. xxvii. p. 376 (1895) ; Lilford, Col. Fig. Br. B. 



part xxx. (1895). 

 FuUgula albeola, Seebohm, Br. B. iii. p. 588 (1885) ; Lilford, 



Col. Fig. Br. B. part xi. (1889). 



Adult Male. General colour above black, including the back 

 and scapulars, the outermost of the latter being white, edged 

 with black ; wing-coverts white, those round the edge of the 

 wing black, the greater series with concealed blackish bases ; 

 bastard-wing, primary-coverts, and primaries black; the second- 

 aries white with blackish bases to the inner webs, the inner 

 secondaries velvety-black like the back ; upper tail-coverts 

 ashy-grey ; tail-feathers slaty-grey ; lores and fore-part of crown 

 green, verging into purple on the hinder crown and crest ; the 

 r.ides of the face from below the eye in a line to the cheeks 

 white, including the ear-coverts and nape, which is crested; 



