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Show 1880.] SPECIES O F ANATIDAE. 509 On the species of this genus my previous notes (P.Z.S 1864 p. 299, et 1866, p. 148) should be consulted. 1. DENDROCYCNA VIDUATA (Linn.). White-faced Tree-Duck. Dendrocygna viduata, Scl. et Salv. P. Z. S. 1876, p. 376. Hab. South America, Africa, and Madagascar. The White-faced Tree-Duck was first received from Brazil in 1835, and again in 1862, when Mr. Christie sent us examples. We have since obtained many specimens. 2. DENDROCYCNA AUTUMNALIS (Linn.). Red-billed Tree-Duck. Dendrocygna autumnalis, Scl. et Salv. P. Z. S. 1876, p. 373. Hab. Mexico and Central America. This Tree-Duck is enumerated in the first list of animals given in the Council's Report for 1831 (p. 22). W e have since received many specimens of it. 3. DENDROCYCNA DISCOLOR, Scl. et Salv. Southern Red-billed Tree-Duck. Dendrocygna discolor, Scl. et Salv. P. Z. S. 1876, p. 375. Hab. South America. Received from Para in 1874 (see P. Z. S. 1864, p. 299), and since frequently exhibited. 4. DENDROCYCNA ARBOREA (Linn.). Black-billed Tree-Duck. Dendrocygna arborea, Scl. et Salv. P. Z. S. 1876, p. 375. Hab. West Indies. Recorded in the list of animals of 1831, and frequently received since. 5. DENDROCYCNA GUTTULATA, Miill. Midler's Tree-Duck. Dendrocygna guttulata, Scl. P. Z. S. 1864, p. 300. Hab. Moluccas. Not yet imported, so far as I know. 6. DENDROCYCNA FULVA (Gm.). Fulvous Tree-Duck. Dendrocygna fulva, Scl. et Salv. P. Z. S. 1876, p. 373. Hab. Mexico and Brazil. Our first examples of this Tree-Duck were obtained in 1867 (see P. Z. S. 1867, p. 687). Two others were obtained in 1871. In 1872, as above mentioned, the only instance of ducks of this genus breeding took place. Mr. C. Bartlett has furnished me with the following note on this subject:- " The Fulvous Tree-Ducks bred in the Gardens in the north pond in August 1872, while under my charge. The nest was upon the ground and was domed, the dome being formed of the long grass surrounding the nest. This is the only instance I know of any of the water-fowl building a dome over its nest. Many of the common |