1870.] NEOTROPICAL ANATID.E. 309 



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 be 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 chaunels 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 sta- 

 tioned 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 obser- 

 vations, 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. 18/2, p. 245.) 



Genus 3. Chenalopex. ™ 



Chenalopex*, Stephens, Gen. Zool. xii. pt. 2, 



p. 41 (1824) C. cegyptiaca. 



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. E. Gray (Hand-1. iii. p. 74) refers to " Chmonetta, Brandt, 1830," as 

 synonymous with Chenalopex. But Chmonetta was proposed by Brandt (Descr. 

 et Ic. An. Boss. fasc. i. p. 5) for Anas jubata, Latham, of Australia, not for 

 Anser jubatus, Spix. 



Proc. Zool. Soc— 1876, No. XXIV. 24 



