The animal kingdom, arranged after its organization : forming a natural history of animals, and an introduction to comparative anatomy . olour black, with the exception of its white primaries, and thebdl and naked skin at its base, which are red. It is common in New Holland, and propagates readily twice ayear, or oftener, when brought to Europe. The Black-necked Swan (C. nigricQll\s).—\i\i.\ie:, witli black neck and tips of the primaries; the sides of thehead white, and bill and feet orange, the former having a black protuberance. Common in South America. The smallest of all, or Duck-billed Sw
The animal kingdom, arranged after its organization : forming a natural history of animals, and an introduction to comparative anatomy . olour black, with the exception of its white primaries, and thebdl and naked skin at its base, which are red. It is common in New Holland, and propagates readily twice ayear, or oftener, when brought to Europe. The Black-necked Swan (C. nigricQll\s).—\i\i.\ie:, witli black neck and tips of the primaries; the sides of thehead white, and bill and feet orange, the former having a black protuberance. Common in South America. The smallest of all, or Duck-billed Swan (C. anatoides. King.), is also from South America, inhabiting towards theStraits of Magellan. Colour pure white, with black tips to the primaries, and bill and feet orange : the formerhaving no basal protuberance. With the exception, therefore, of the common mute species, this division pertainsto the southern hemisphere. The rest have the trachea elongated as in the Cranes, and similarly entering a cavity in the sternal * We have found this number in four species, viz., C. olor, alruCui, muiicus, and Bcaickii,—Eo. 262 Fig. 130.—Sternum of Bewicks S\i They carry the neck more upriglit, and never elevate the tertial plumes. None of them hasany protuberance on the base of the bill; and they have all whiteplumage with black feet, or, in the young, grey plumage with whitewings, and the feet white when newly hatched. They yield the swansdown of commerce, which is much inferior both in quality and quan-tity in the others; and are restricted in their distribution to thenorthern hemisphere. Of four species, two are respectively peculiar to each Trumpeter Swan (C. buccinator) of America is the largest, and yieldsmost of the down of commerce, together with the species. Its bill iswholly black, and the trachea forms a double vertical convolution within thesternal ridge, and is bifurcated into short inflated bronchi. Audubons Swan (C. Audubonii and americ
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