1919-] tJi'^ Birds of the Anglo-Eguptiaii Sudan. 667 



[C. & L. coll.] 1 Kamisa Dec. Sen. ; 1 Jebel Ahmed 

 Agha Jan. U.N. 



[Chr. coll.] 2 Wall July & Aug. B.G. 



[Gurney coll.] 1 Meroe Jan. Ber. 



Both Claude Grant op. cit. and Sclater, Ibis, 1917, p. 175, 

 have remarked on the variation in size of this species, and, 

 as the latter suggests, it is probable that the Sudan form 

 is intermediate between L. n. nasntus of Senegal and L. n. 

 forskalii of Arabia. We think on the whole, however, it is 

 best to unite it for the present with the typical form. 



Lophoceros erythrorhynchus erythrorhynchus. 



Buceros erythrorhynchus Teram. PI. Col. livr. 36, 1823, 

 sp. 19 : Senegal. 



Lophoceros erythrorhynchus Butler, Ibis, 1905, p. 391, 

 1908, p. 243, 1909, p. 36. 



Lophoceros erythrorhynchus erythrorhynchus Claude Grant, 

 Ibis, 1915, p. 272. 



[B. coll.] 1 Roseires Sept. Sen.; I El Ein Mch. Kor. ; 



1 Tawela June, U.N. ; 1 Mongalla " summer," Mon. ; 



1 Wau Apl. B.G. 

 [C. & L. coll.] 2 Kamisa Dec, 1 nr. Sennar Jan. Sen. ; 



1 White Nile lat. 13° N. Jan. W.N. 

 Widely distributed {A. L. B.). 



Bycanistes subcylindricus. 



Buceros subcylindricus P. L. Sclater, P. Z. S. 1870, p. 668, 

 pi. 39 : West Africa. 



Mr. Butler mentions in his notes that he saw a large black 

 Bycanistes with wings apparently mostly white at Kajo Kaji 

 and Lado Nyepo in the Lado Enclave. He did not secure 

 one, but is inclined to attribute those he saw to this species, 

 which has been recorded from Uganda and the upper 

 Welle. 



Bucorvus abyssinicus. 



Buceros abyssinicus Bodd. Tabl. PL Enl. 1783, p. 48 : 

 Abyssinia. 



