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Show 1876.] NEOTROPICAL ANATID.E. 371 Bibra, Denkschr. Akad. Wien, v. p. 131 ; cf. J. fiir Orn. 1855, p. 57; Scl. P.Z.S. 1859, p. 206, 1860, p. 388, 1867, pp. 334, 339; Abbott, Ibis, 1860, p. 159; Ph. & Landb. Cat. Av. Chil. p. 50; Scl. & Salv. P. Z. S. 1868, p. 145, et Ibis, 1869, p. 284 (Elizabeth Isle), et Nomencl. p. 139. Cisne de cabeza negra, Az. Apunt. no. 425. Albus; capite et collo cum striga postoculari et mento nigris; loris nudis : long, tota cire 48*0 £>o//. angl., ala 17*5, cauda 5*5, rostri a rictu 3*0, tarsi 3*5, dig. med. cum ungue 4.2 (Descr. exempl. ex inss. Falklandicis in Mus. S. & G.). Rostro plumbeo, ungue albo; cera tumida ruberrima ; iridefere nigra, pedibus pallide carneis (ave viva). Hab. Falkland Islands (Abbott); Straits of Magellan (Bougainville, Cunningham); La Plata (Azara, Burmeister); Chili (Gag, Philippi fy Landbeck). This Swan is abundant in the pampas of Buenos Ayres, and in the lower portion of the Argentine Republic, and thence southwards to Tierra del Fuego. It is also found in the Falkland Islands and along the western coast of South America beyond Valparaiso, perhaps almost up to the frontier of Bolivia. Dr. Cunningham observed both this species and C. coscoroba near Sandy Point in the Straits of Magellan, where they were breeding. In the Falkland Islands the Black-necked Swan is found throughout the year, but is rather scarce and very wild. It seldom breeds on the main island, but retires to the adjacent islets for that purpose. Dr. Burmeister mentions its occurrence on the Parana, and also states that it is found on the island of Santa Catharina off the coast of Brazil, this being probably nearly its most northern limit. The Black-necked Swan has long been introduced into Europe; and seldom a year passes but one or more broods are reared in the Gardens of this Society. 2. CYGNUS COSCOROBA. Anas coscoroba, Mol. Stor. Nat. Chili, p. 207 ; G m . S. N . i. p. 503 (1788) ex Molina. Anser coscoroba, Vieill. Enc. Me'th. p. 112 (1823). Cyynus coscoroba, Hartl. Ind. Az. p. 27; Eyd. & Gerv. Ois. de Favorite, in Mag. de Zool. 1836, p. 36 ; Gray and Mitch. Gen. of Birds, t. clxvi. ; Gay, Faun. Chil. p. 446 (1848) (Chili) ; Burm. J. fiir Orn. 1860, p. 226, et La Plata-Reise, ii. p. 512 (Parana) ; P. Z. S. 1872, p. 365 ; Scl. P. Z. S. 1867, pp. 334, 339 (Chili), 1860, p. 388 (Falklands); Abbott, Ibis, 1861, p. 159 (Falklands); Schl. Mus. des P.-B. Anseres, p. 83 ; Ph. & Landb. Cat. Av. Chil. p. 41 ; Scl. & Salv. Ibis, 1869, p. 284 (Rio Galegos); Nomencl. p. 129. Cygnus anatoides, King, P. Z. S. 1830-31, p. 15 (Straits of Magellan); Eyton, Mon. Anat. p. 101 (1838). Cygnus chionis, 111. in Mus. Berol. ; Licht. Nomencl. p. 101. Coscoroba chionis, Bp. C. R. xliii. p. 648 (1856). |