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Show 1876.] NEOTROPICAL ANATID.E. 369 been almost universally recognized. The bird described by Molina, and called Anas hybrida, which name was also adopted by Gmelin as apparently applying to a species distinct from his A. antarctica, probably refers to this species; and if so, Molina's name has the priority; but so vague are his descriptions, and so inapplicable the name he has chosen, that we must decline to disturb a title so firmly established as antarctica. Forster noticed this species in Tierra del Fuego, where it has since been seen by every traveller who has written on the birds of that district. Here Darwin found it, and also in the Falkland Islands and on the western coast of South America as far north as Chiloe. It lives exclusively on rocky parts of the sea-coast; hence the name, "Rock-Goose," given to it by sailors. In the deep and retired channels of Tierra del Fuego, says Mr. Darwin, the snow-white male, invariably accompanied by his darker consort, and standing close by each other on some distant rocky point, is a common feature in the landscape. Captain Abbott confirms Mr. Darwin's observation as to the abundance of this Goose in the Falklands ; he adds that he found it along the coast, and that the nest is placed a few yards from the shore, in an exposed place, and the female may sometimes be seen sitting on her eggs from a distance. The male bird remains stationed close by. The eggs are generally six or seven in number, and, during the absence of the female, are carefully covered with down from her breast. Philippi and Landbeck give to this species the same range along the west coast as Mr. Darwin, adding that it is occasionally seen at Valdivia. Its eastern range, according to Burmeister's latest observations, does not extend northward of the inlet of Santa Cruz, where it winters. Little success has at present attended the efforts to introduce this species into England. One individual has reached this country alive up to the present time. (See Rev. List of Vert. 1872, p. 245.) Genus 3. CHENALOPEX. Type. Chenalopex*, Stephens, Gen. Zool. xii. pt. 2, p. 41 (1824) C. agyptiaca. CHENALOPEX JUBATA. Anser jubatus, Spix, Av. Bras. ii. p. 84, t. 108 (1825) ; Burm. Syst. Ueb. iii. p. 433. Chenalopex jubata, Gray & Mitch. Gen. B. t. 164; Cab. in Schomb. Guiana, iii. p. 762 ; J. E Gray, Knowsl. Menag. ii. t. xv.; Taylor, Ibis, 1864, p. 96 (Orinoco) ; Scl. & Salv. P. Z. S. 1866, p. 200 (Ucayali); Nomencl. p. 128 ; Pelz. Orn. Bras. p. 319. Sarkidiornis jubata, Gray, Hand-1. iii. p. 74. * Mr. G. R. Gray (Hand-1. iii. p. 74) refers to " Chenonetta, Brandt, 1836," as synonymous with Chenalopex. But Chenonetta was proposed by Brandt (Descr. et Ic. An. Ross. fasc. i. p. 5) for Anas jubata, Latham, of Australia, not for Anser jubatus, Spix. P R O C ZOOL. Soc-1876, No. XXIV. 24 |