ORDER ANSERES. I2Q 



177. Dendrocygna autumnalis (LINN.). 



Black-bellied Tree-duck. 



Anas antumnalis LINN. S. N. ed. 10, I. 1758, 127. 

 Dendrocygna autumnalis EYTON, Monogr. Anat. 1838, 109. 



[B 574, C 487, R 599. C 7^6.] 



HAB. Southwestern border of the United States and southward 

 (Mexico, West Indies, etc.). 



178. Dendrocygna fulva (GMEL.). 



Fulvous Tree-duck. 



Anas fulva GMEL. S. N. I. 1788, 530. 



Dendrocygna fulva BURMEISTER, Reise durch die La Plata Staaten, 

 1856, 515. 



[B 575, C 486, R 600, C 705.] 



HAB. Southern border of the United States (Louisiana, Texas, 

 Nevada, California) and southward. 



SUBFAMILY CYGNIN^. SWANS. 



GENUS OLOR WAGLER. 

 Olor WAGLER, Isis, 1832, 1234. Type, Anas cygnus LINN. 



[179.] Olor cygnus (LINN.). 



Whooping Swan. 



Anas cygnus LINN. S. N. ed. 10, I. 1758, 122. 



Olor cygnus BONAPARTE, Catal. Parzudaki, 1856, 15. 



[B , C , R 586, C 690.] 

 HAB. Europe and Asia ; Greenland. 



180. Olor columbianus (ORD). 



Whistling Swan. 



Anas columbianus ORD, in GUTHRIE'S Geogr. 2d Am. ed. 1815, 319. 

 Olor columbianus STEJN. Pr. U. S. Nat. Mus. V. 1882, 210. 



[B 561 bis, C 477, R 588, C 689.] 



HAB. The whole of North America, breeding far north. 



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