818 Messrs. Sclater G«^ Mackwortli-Praed ow [Ibis, 



Kosti, White Nile Province, he saw and heard a Lapwing, 

 but it was unfortunately too wild to get a shot at. Heiiglin 

 (Orn. Nordost-Afr. iii. p. 994) mentions records from 

 "Nubia" and the mouth of the White Nile. 



Famih' Arenariid^e. 



Arenaria interpres interpres. 



Tringa interpres Linn. Syst. Nat. 10th ed. 1758, p. 148 : 

 Europe and N. America, restricted type-locality Sweden. 



Arenaria interpres Reich w. V. A. i. p. 142. 



Strepsilas interpres Butler, Ibis, 1905, p. 396. 



The Turnstone has been recorded from the White Nile by 

 Mr. Butler, and from Suakin by Heuglin. 



Family H^MATOPODiDiE. 



Hsematopus ostralegus ostralegus. 



Hamatopns ostralef/ns Linn. Syst. Nat. 10th cd. 1758, 

 p. 152: Europe and N. America, restricted type-locality 

 Oland; Reichw. V. A. i. p. 141. 



The Oyster-catcher is recorded from Suakin by Penton. 



Family Larid^e. 



Larus cairns canus. 



Larus canns Linii. Syst. Nat. 10th ed. 1758, p. 136: 

 Europe, restricted type-locality Sweden. 



The Common Gull is recoided by Vicrthaler from Khar- 

 toum according to Heuglin, Orn. Nordost-Afr. p. 1379: so 

 also is the Great Black-backed Gull ! AVe do not admit 

 either bird to a place in the Sudanese list on present 

 evidence, though there is no inherent impossibility in their 

 occurrence. 



Larus cachinnans. 



Larus cachinnans Pallas, Zoogr. Rosso-Asiat. ii. 1827, 

 p. 318 : S.E. Russia; Reichw. V. A. i. p. 42. 



The Yellow-legged Herring-Gnll is definitely reported by 

 Heuglin from the Red Sea, where it occurs as far south as 



