CONTRIBUTION TO THE ORNITHOLOGY OF SUDAN. 
571 
Orcio: ANSERIFORMES. 
Fam. ANATIDAE. 
Dendrocygna viduata (L). 
Anas viduata, Ltnné, Syst. Nat. I. p. 205 (1760). 
Dendrocygna viduata (L.) Salvad., Cat. B. Br. Mus. XXVII. p. 145 (1895); Reichw., 
Vög. Afr. I. p. 124 (1900—1901); Flower, Pr. Zool. Soc. 1900. p. 960; Witherby, Ibis. 
1901. p. 275; Ogilv.-Grant, Ibis, 1902. p. 445; Butler, Ibis, 1905. p. 388, 1908. p. 257. 
cT . Semsir, Dinder, 26. I. 1912 (Count Königsegg). 
Chenalopex ægyptiacus (L.) 
Anas aegyptiaca, Linné, Syst. Nat. I. p. 197 (1766). 
Chenalopex aegyptiacus (L.) S alvad., Cat. B. Br. Mus. XXVII. p. 167 (1895); Reichw., 
Vög., Air. I. p. 131 (1900 — 1901); Flower, Ibis, 1900. p. 961; Witherby, Ibis, 1901. p. 
279; Ogilv.-Grant, Ibis, 1902. p. 445; Butler, Ibis, 1905. p. 383, 1Ó08. p. 257. 
ad. Erif-Eldik, 30. XII. 1911 (Count Königsegg). 
Plectropterus gambensis (L.) 
Anas gambensis, Linné, Syst. Nat. I. p. 195 (1766). 
Plectropterus gambensis (L.) Reichw., Vög. Afr. I. p. 134 (1901 1902). 
Plectropterus rueppelli, Sclt., Ogilv.-Grant, Ibis. 1902. p. 444; Butler, Ibis, 
1905. p. 382. 
Two specimens were killed by Count Königsegg in the swampy 
part of Khor-Em-Dul on 15 th February 1911, but they were not preser¬ 
ved for the collection. 
Ordo : ACCIPITRIFORMES. 
Fam. VULTÜRIDAE. 
Otogyps auricularis (Daud.) 
Vultur auricularis, Daud., Traité II. p. 10 (1800). 
Otogyps auricularis (Daud.) Sharpe, Cat. B. Br. Mus. I. p. 13 (1874); Reichw. Vög. 
Afr. I. p. 512 (1900 — 1901); Flower, Pr. Zool. Soc. 1900. p. 959; Ogilv.-Grant, Ibis, 1902. 
p. 439; Butler, Ibis, 1905. p. 370. 
One old female of this species was killed by Count Königsegg for 
his own collection in Khor-Em-Dul on 14 th of February 1911. 
