784 IMessrs. Sclater and Mackworth-Praed on [Ibis, 



[B. coll.] 1 Renk, 1 Malakal May, U.N. 

 [C. & L. coll.] 1 Meshra Zeraf Jan. U.N. 

 [Chr. coll.] 1 Yei Dec. L.E. 

 Common and widely distributed. 



» 



Family Anatid^. 



Sarkidiornis melanotiis africanus. 



Surkidiornis africanus Eyton, Mon. Aiiat. 1838, p. 103 : 

 Gambia River. 



Sarkidiornis melanotus Reich w. V. A. i. p. 129. 



Sarcidwrnis melanonota (Penn.) Butler^ Ibis, 1905, p. 383, 

 1908, p. 257. 



[B. coll.] 1 Malakal May, U.N. 



Abundant on the upper Nile. 



Nettapus auritus. 



Anas aurita Bodd. Tabl. PI. I]nl. 1783, p. 48 : Madagascar. 



Nettapus auritus Reichw. V. A. i. p. 127; Butler, Ibis, 

 1905, p. 383. 



[B. coll.] 1 Meshra el Rek iVIcli. B.G. 



[Chr. coll.] 2 Meridi Feb. B.G. 



Not uncommon in the southern Sudan, and occurs in 

 Kordofan in the rains. 



Casarca ferruginea. 



Anas ferruginea Vroeg, Cat. Adumbr. 1764, p. 5: 

 Tartary. 



Casarca casarca (Linu.) ; Reichw. \. A. i. p. 136. 



Tadurnu casarca Butler, Ibis, 1905, p. 384. 



[B. coll.] 1 Khartoum Apl. 



The Ruddy Sheld-Duck is abundant on the lower White 

 Nile in winter i^A. L. B.). 



Anas platyrhynchos. 



Atias platyrhynchos Linu. Syst. Nat. 10th ed. 1758, 

 p. 125 : Europe, restricted type-locality Sweden. 



Anas boschas Linn, auctorum. 



The Mallard is not at all common in the Sudan, but is 

 recorded by Mr. Butler from the White and Blue Niles. 



