1919-] il'^ Birds uf the Anglo-Egyptian Sudan. 651 



[B. coll.] 1 Jebel Kerbosh Mcb. E.S. ; 3 Kbartoum 

 July, 1 Fatasha Jan. Kh. ; 5 Mougalla July-Sept. 



[C. & L. coll.] 2 Sinkat Mch. R.S. ; 2 Kamisa Dec. Sen. ; 

 1 White Nile lat. 11'' N. Jau. U.N. 



[Gurney coll.] 1 Meroe Feb. Ber. 



We have no hesitation in assigning all the birds from the 

 Sudan to the typical race. There is one example from the 

 Baro river in the Museum, collected by Zaphiro, which is 

 quite remarkably dark below and blue above. This led 

 Claude Grant (Ibis, 1915, p. 406) to suppose that the darker 

 East African race, C. m. pulcher Neum., extended north 

 into the Sudan up to the Baro river. Our birds from 

 Mongalla, however, show that this is not the case, and 

 probably the boundary between C. m. macrourus and C. m. 

 pulcher is somewhere about Lake Albert, though one from 

 Lado is somewhat intermediate. In Abyssinia C. m.sijntactus 

 is stated by Claude Grant to be identical with C. in. 

 macrourus. 



Family MicROPODiDiE: 



Micropus apus apns. 



Hirundo apus'hum. Syst. Nat. 10th ed. 1758, p. 192: 

 Europe, restricted type-locality Sweden. 



Apus apus apus (Linn.) ; Hartert, Vog. pal. Faun. p. 836. 

 Cypselus apus (Linn.) ; Butler, Ibis, 1905, p. 344. 

 [B. coll.] 1 Kaka June 3, U.N. 



Micropus apus koUibayi ? 



Apus apus kollibayi Tschusi, Orn. Jahrb. xiii. 1902, p. 234 : 

 Curzola I., Dalmatia; Hartert, Vog. pal. Faun. p. 837. 



[B. coll.] 2 Bahr el Jebel, 1 Lake No May 14 & 16, 

 U.N. 



Of these lour specimens of Swifts, three seem to belong to 

 the long-winged race which, according to Hartert, breeds in 

 southern Dalmatia and probably elsewhere in southern 

 Europe. The wing-measurements of these three examples, 

 all males, are 184, 178, and 174 mm. The other specimen 

 which we refer to M, a. apus has a wing of 165 mm. At 



