AVES ANATID/E. 409 



(Cape San Antonio, Buenos Aires, breeding) ; Scl. P. Z. S. 1880, 

 p. 508; Sharpe, P. Z. S. 1881, p. 14 (Hugh Bay); Milne-Edwards, 

 Faun. Reg. Austr. An. Sci. Nat. (6) xiii. Art. 9 p. (1882) ; Doering, 

 Expl. al Rio Negro, Aves, p. 53 (1882); Barrows, Auk, I. p. 273 

 (1884: Entrerios) ; Bed. J. f. O. 1887, p. 133 (Santa Catarina ; 

 Parana : Buenos Aires) ; Burm. An. Mus. Nac. Buenos Aires, III. 

 part X. p. 247 (1888 : Patagonia) ; Scl. & Huds. Argent. Orn. II. p. 

 124, pi. xviii (1889) ; Burm. An. Mus. Nac. Buenos Aires, III, part 

 XI, p. 319 (1890: Fortin Villegas) ; Graham Kerr, Ibis, 1890, p. 

 358; Evans, Ibis, 1891, p. 71 (Incubation); Frenzel. J. f. O. 1891, 

 p. 125 (Cordoba); Holland, Ibis, 1892, p. 206 (Estancia Espartilla, 

 resident, breeds early in August) ; James, New List Chil. B. p. 9 

 (1882) ; Aplin, Ibis, 1894, p. 200 (Uruguay) ; Lane, Ibis, 1897, P- 

 191 (Rio Pilmaiguen : Central and Southern Chili, migratory). 



Anas nielanocorypJiiis "Mol." Less. Compl. de Buff. Ois. IX. p. 528 (1837). 



Sthenelus melanocoryphus, Stejn. Proc. U. S. Nat. Mus. V. p. 185 (1882). 



Sthenelides nielanocoryphus, Stejn. Stand. Nat. Hist. IV. Birds, p. 143 

 (1885). 



Cygnus melanocoryp/ms, Salvad. Cat. B. Brit. Mus. xxvii. p. 39 (1895) ; 

 Schalow, Zool. Jahrb. Suppl. IV. p. 677 (1898); Sharpe, Hand List 

 B. I. p. 207 (1899); Martens, Hamb. Magalh. Sammelr., Vog. p. 24 

 (1900 : Straits of Magellan : Falkland Islands). 



General description. 



Size. — Adult male, P. U. O. C, 7858, Rio Coyle, Southern Patagonia, 

 3 February 1898, A. E. Colburn. 



Total length, about 49.0 inches. 



Wing, 17.7. 



Culmen, 3.4. 



Tail, 5.6. 



Tarsus, 3.5. 



The adult female is a little smaller than the adult male. (Female 

 adult P. U. O. C. Rio Coyle, Southern Patagonia, 3 February 1898, A. 

 E. Colburn.) 



Co/ok. — (Adult male cited.) General color white, except the neck and 

 head, which are chiefly black. 



Head : Velvety black. A white line occupies part of the lores and 



