» 4 1920.| the Birds of the Anglo-Egyptian Sudan. 78 Nyroca ferina. Anas ferinad Linn. Syst. Nat. 10th ed. 1758, p. 126: Europe, restricted type-locality Sweden.

[B. coll.]} 2 Khartoum Mch. 6 & 10.

The Pochard is apparently not common in the Sudan. One of these specimens is recorded by Mr. Butler (Ibis, 1908, p. 257) as Fuligula nyroca, by an error.

Dendrocygna viduata. Anas viduata Linn. Syst. Nat. 12th ed. 1766, p. 205: Cartagena, Columbia.

Dendrocygna viduata Reichw. V. A. 1. p. 1243; Butler, Ibis, 1905, p. 383, 1908, p. 257.

[B. coll.]| 2 Malakal May & June, U.N.; 4 Mongalla July—Sept. Mon. [C. & L. coll.] 1 White Nile lat. 14° N. Jan. W.N.

The Whitehead Duck is plentifulin the Sudan; Mr. Butler mentions that he once heard of a flock as far north as Halfa. There appears to be no difference between African and South American examples of this species.

Dendrocygna fulva. Anas fulva Gmel. Syst. Nat. 1. pt. 2, 1789, p. 530: “ New Spain,” i.e. Mexico (ex Brisson).

Dendrocygna fulva Keichw. V. A. i. p. 126 ; Butler, Ibis, 1905, p. 383.

[B. coll.| 1 Khartoum June.

The Whistling Duck has the same range in the Sudan as D. viduata, but numerically is much scarcer (A. L. B.).

Plectropterus gambensis riippelli.

Plectropterus riippellt Sclater, P. Z. S. 1859, p. 181, pl. 153: ‘‘ Eastern Africa”; Butler, Ibis, 1905, p. 382, 1908, pv. 256. The Spur-winged Goose is widely distributed. We have no knowledge of the form known as P. niger (Sclater, P. Z.S.

1877, p. 47) ever having occurred in the Sudan, but