470 Messrs. Sclater and Mackwortli-Praed on [Ibis, 



Passer (Sorella) emini-bey. 



Sorella emini-bei/ Ilartlaub, J. f. O. 1880, p. 211 : Lado. 



Passer emini (Hartl.) ; Shelley, B. A. iii. p. 256 ; Butler, 

 Ibis, 1909, p. 77. 



fB. coll.] 1 Mongalla, 1 Mesbra-el-Rek May, B.G. 



As this species has so distinct a type of plumage, it seeras 

 more satisfactory to separate it from Passer under the sub- 

 genus specially characterized for it by Hartlaub. 



Passer (Auripasser) liiteus. 



Passer luteus (Licht.) ; Shelley^ B. A. iii. p. 258; Butler, 

 Ibis, 1905, p. 315. 



[B. coll.] 1 Shendi Mch. Ber. : 20 Khartoum Apl. May 



June Sept. ; 4 Bara Apl. Kor. 

 [C. & L. coll.] 5 White Nile lat. 13|°-15° N. Jan. - 



Passer jagoensis cordofanicus. 



Passer cordofanicus Heuglin, Orn. N.O.-Afr. Suppl. 1871, 

 p. cxli : Kordofaii ; Shelley, B. A. iii. p. 247. 



[B. coll.] 3 Mongalla. 



We consider that this bird is more closely allied to 

 P. jagoensis from the Cape Verde Is. than to P. ■moiitemis 

 from southern Africa, of which it has generally been con- 

 sidered a subspecies. 



Passer domesticus arboreus. 



Passer arboreus Bonaparte, Consp. Av. i. 1850, p. 510 (^ex 

 Liclit. MS. in Berlin Mus.) : Seunar. 



Passer rvjidorsaJis Brehm, Naumannia, 1856, p. 376 : 

 Khartoum. 



Passer domesticus [part], Shelley, B. A. iii. p. 239; 

 Butler, Ibis, 1905, p. 315. 



[B. coll.] 10 Khartoum Feb. Apl. Oct. Nov. Dec. 



[C. & L. coll.] 3 Singa Dec. Sen. ; 13 White Nile lat. 

 ISf'-L^" N. Jan. 



A single exami)le collected by Mr. Butler at Khartoum 

 is washed all over with a strong reddisii tinge. We had 

 thought it to be merely artificialj but Mr. Butler informs us 



