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



Crateropus plebeius plebeius. 



Ixos plebejus Cretzschmar, Atlas zu der Reise, 1826, p. 35, 

 pi. 23 : Kordofan. 



Crateropus plebeius plebeius (Cretzsch.) ; Neumann, J. f . O. 

 1904, p. 548. 



Crateropus cordofanicus Butler, Ibis, 1905, p. 330, pi. vii. : 

 Kordofan. 



[B. coll.] 1 Jebel Melbis Apl. Kor. [type of C. cordo- 

 fanicus Butler]. 



There can be no doubt whatever that this bird, described 

 by Butler as new, is identical with that originally described 

 by Cretzschmar from RiippelPs collection in Kordofan. It 

 was previously known only from the two types in the 

 Senckenberg Museum in Frankfurt, and a third example 

 in the Berlin Museum. 



Crateropus plebeius cinereus. 



Crateropus cinereus Heuglin, SB, Akad. Wien, xix. 1856, 

 p. 282 : White Nile from 6° N.L. ; id. J. f. O. 1862, p. 300. 



Crateropus plebeius cinereus Heugl. ; Neumann, J. f. O. 

 1904, p. 548. 



Crateropus plebeius apud Butler, Ibis, 1908, p. 228, 1909, 

 p. 81. 



[B. coll.] 1 Baval Jan., 1 Ukanda Jan., 1 Wau Apl. B.G. ; 

 1 Mongalla Jan.; 3 Rejaf Feb. Apl. L.E. 



[Chr. coll.] 2 Meridi Feb., 2 Yambio Mob., 1 Wau July- 

 Aug. B.(x. ; 5 Yei Nov. Dec. L.E. 



Distinguished at a glance from C. p. plebeius by its 

 considerably darker coloration. _ 



Crateropus leucocephalus leucocephalus. 



Turdoides leucocephalus Cretzschmar, Atlas zu der Reise, 

 1826, p. 6, pi. 4: Sennar. 



Crateropus leucocephalus leucocephalus Neumann, J. f. O. 

 1904, p. 549. 



Crateropus leucocephalus Butler, Ibis, 1905, p. 330. 



[B. coll.] 1 Gallabat May, Kas. ; 2 Roseires July Aug. 

 Sept. Dec, 1 Soleil Apl. Sen. 



[C. & L. coll.] 2 Kamisa Dec. Sen. 



