200 ZOOLOGY. 



rostro dilafato, turgido, hasi flavo, medio riibro, apice nigro; mandibida stiperiore midto angustiore 

 quam inferior; j^edibus tridactylis,Jlavis. 



"Mean dimfinsions of three individuals: 



Length from hase of bill to apex of tail 35{, inches. 



Length of the hill along the upper mandible 4f " 



Length of the os tibiae 9^ " 



Length of the torsal 9 " 



Length of the middle toe 2^ " 



"I may add that the total length varies between 34 and 36f inches, and that of the os iibice 

 between 8f and lOf ; which is very remarkable. The three individuals were males. 



"P. S. — After having written this notice, there fell in my hands an account of the province 

 of Tarapaca^ by Mr. William Bollaert, read at a meeting of the Royal Geographical Society of 

 London. In this paper the author states that he found on lakes of the Cordilleras of that pro- 

 vince 'flamingos with red breasts,' and on the map accompanying the memoir there is a lake 

 called Las Farrinas, in latitude 19° south. I immediately conjectured that this flamingo of 

 the Cordillera of Tarapaca with the red breast was my Phcenicopteriis andinus, and having had 

 the pleasure to see Mr. Bollaert in Santiago, and show him my mounted specimen in the mu- 

 seum, this gentleman confirmed me that it is the same sjiecies; so that we may assign for its 

 habitation the whole Cordilleras from latitude 19° south to 27° south." 



Order V. NATATORES. 



CYGNUS NIGRICOLLIS, (Gmelia.) 



Anas nigricollis, Gm. Syst. II, 1788^ 502. 



Cygnus nigricollis, (Gm.) Gay, Fauna Chilena^ Aves, 445. 



VuLG. Black-necked Swan. Cisne. 



Figure. — Gay, Historia Fisica y Politica de Chile, Atlas, Orn. PI. (not numbered.) 

 This fine Swan, remarkable for its black head and neck, which strongly contrast with the 

 snowy whiteness of the plumage of the other parts of its body, is frequently met with in the 

 rivers and lakes. It appears to be restricted to the countries of western South America. 



Numerous specimens of this bird are in the collection of the Expedition. The female scarcely 

 diifers from the male, except in somewhat smaller size, and in having the protuberance at the 

 base of the upper mandible less strongly developed. Lieutenant Gilliss observes : " This bird 

 abounds most in the small mountain lakes, on the shores of which it builds its nest. I have 

 never seen it on the seacoast. It is shorter necked and shorter legged than the North American 

 swan, and but for the agreeable contrast of its colors, would have nothing to redeem its awk- 

 ward movements and ungraceful figure on land. It is easily tamed, my friend, Mr. Salinas, 

 near Santiago, having several in an artificial lake in his garden. It lays six to eight eggs of a 

 dirty bluish white color." 



BEKNICLA ANTARCTICA, (Gmelin.) 

 Plate XXIII. Male and female. 



Anas antarctica, Gm. Syst. Nat. I, 1788, 505. 



Gay, Fauna Chilena, Aves, 442. 

 Anas ganta, Forst. Desc. An. 1844, 336. 

 VuLG. Antarctic Goose, 



