Hornbills of the Ethiopian Region. 55 



Bycanistes subquadratus, Cab. J.f. O. 1880, p. 350, pi. l"*; 

 Elliot, Monogr. Bucerot. pi. 28 ; Bocage, Orn. Angola, 

 p. 540 \ 



Bycanistes subcylindricus , Elliot, Monogr. Bucerot. pi. 29. 



Bucerus sub(juadratus , Hartl. Abhandl. uat. Ver. Bremen, 

 viii. 1882, p. 208'. 



Hab. Talla Mogongo, in Angola {Schiltt'). Nyam-nyam 

 country {Mus. Brux.^). Upper White Nile district [Emin 

 Beyy.^ 



Mr. Sharpe informs me that he never saw the specimen 

 from BohndorflF's collection which M. Dubois describes. 



10. BUCEROS LEUCOPYGIUS. 



Buceros leucopygius, Dubois, Bull. Mus. Belg. iii. 1884, 

 p. 202, pi. 10, fig. \\ 



Pholidophalus sharpii, Sharpe, Journ. Linn. Soc, Zool. 

 xvii. 1884, p. 438\ 



Hab. Semmio and Ndoruma, in the Nyam-nyam country 

 (Bohndorf). 



Mr. Sharpe only met with one specimen in M. Bohndorff's 

 Nyam-nyam collection, labelled " Ndoruma,^' which he re- 

 ferred to P. sharpii, while M. Dubois records two specimens, 

 both from Semmio, out of the same collection. 



11. BuCEKOS CYLINDRICUS. 



Buceros cylindi'icus, Temm. PI. Col. 1830, pi. 251. fig. 2; 

 Hartl. Orn. W.-Afr. p. 162'; Cass. Pr. Ac. Philad. 1859, 

 p. 139'; Ussher, Ibis, 1874, p. 51'; Dubois, Bull. Mus. 

 Belg. iii. 1884, p. 201 ; Biittikofer, Notes Leyden Mus. 

 iv. 1885, p. 206 \ 



Bycanistes cylindricus, Cab. Mus. Hein. ii. 1860, p. 173; 

 Elliot, Monogr. Bucerot. pi. 30; Bouvier, Cat. Ois. Marche 

 &c. 1875, p. 28 ^ 



Buceros casuarinns, G. K. Gray, Ann. & Mag. Nat. Hist, 

 viii. p. 1871, pp. 17, 437; Sclater, P. Z. S. 1885, p. 851. 



Pholidophalus casuarius, Elliot, Monogr. Bucerot. pi. 34. 



Hab. North Africa, Gaboon to Liberia. 



Camma River {Du Chailiu') : Ogowe Hi ver, in Ga- 



