718 Messrs. Sclater and Mackworth-Praed on [Ibis, 



[B. coll.] 1 Gedaref Apl. Kas. ; 2 Roseires Aug. Sept. 



Sen. ; 3 Khartoum Mcli. May Dee. ; 1 Mougalla 



summer ; 2 Meslira el Rek May, B.G. 

 [C. & L. coll.] 1 Tonga Mch. U.N. 



This is the northern representative of H. albigularis 

 Strickl. of South Africa. As, however, there are no con- 

 necting geographical forms between that species and the 

 present one, and as they are very clearly distinct, we prefer 

 to regard this as a species and not a subspecies. 



Widely distributed and resident {A. L. B.). 



Hirundo smithi. 



Hirundo smithii Leach, Tuck. Voy. Congo, App. 1818, 

 p. 407 : Chisalla Island, Congo; Reichw. V. A. ii. p. 410 ; 

 Butler, Ibis, 1905, p. 342, 1908, p. 238. 



[B. coll.] 4 Roseires Aug. Sept. Sen. ; 1 Shendi Feb. 



Ber. ; 1 JMongalla summer : 1 Cliak Chak Feb. 



B.G. 

 [Chr. coll.] 1 Meridi Feb. B.G. 



Hirundo puella unitatis, subsp. nov. 

 [B. coll.] 3 Kajo Kaji Mch. L.E. 



Oberholsei- has pointed out that the typical race of this 

 Swallow is confined to northern West Africa (Pr. U.S. Nat. 

 Mas. xxviii. 1905, p. 933), and he uses Guerin's H. abyssinica 

 for the race from the rest of Africa. Unfortunately, how- 

 ever, on examining the large series in the British Museum, 

 it at once became evident that the Abyssinian bird is again 

 distinct, and that the best known race inhabiting central, 

 south, east, and west Africa requires another name. 

 H. korthulsi Bp. Consp. i. p. 340 is founded on a bird from 

 an unknown locality. We propose, therefore, the name 

 H. p. unitatis, subsp. n. 



Type, a male from Pinetowu, Natal, collected 15 October 

 by H. Ayres. B.M. reg. no. 85/9/1/13. Named in honour 

 of the Union of South Africa. 



