50 Capt. G. E. Shelley on the 



Buceros^ahjssinicus, s'AX.caffer, Dubois^ Bull. Mus. Belg. 

 iii. 1884, p. 222. 



Hah. Confined to East and South Africa. 



Usequa, Ungu, Ruwana, Mori;, Maurui, Baraaugwato 

 [Fischer'^ "^ '^) ; Usambara Hills near Paiigani {Kirk\ Shelley 

 Mus.); Zambesi {Kirk^); Mashooua", Transvaal {Ayres^^); 

 Natal [Ayres^); Zululand {Gordye, Shelley Mus.); common 

 on the eastern frontier of Cape Colony {Layard) ; East London 

 {Richard^'^) ; Ondonga and Okavango River {Andersson') ; 

 Quillengues and Humbe, in Mossamedes {Anchieta^^). 



2. Ceratogymna. 

 1854. Ceratogymna, Bp. Consp. Vol. Anisod. Type. 



1854, p. 2 C. elata. 



1859. Sphagolobus, Cab. Mus. Hein. ii. 1859, 



p. 171 C utrata. 



Key to the Species. 



a. Tail white, with the two central feathers black 3. C. elata. 



b. Tail black, with one third of the ends of all but the 



centre feathers white 4. C. atrata. 



3. Ceratogymna elata. 



Buceros elatus, Temm. PI. Col. 1830, pi. 521. f. 1 ; Hartl. 

 J. f. O. 1855, p. 36r; id. Orn. W.-Afr. p. 161'; Gurney, 

 Ibis, 1859, p. 153 ^ Ussher, 1874, p. 51'; Dubois, Bull. 

 Mus. Belg. iii. 1884, p. 198; Buttikofer, Notes Leyden Mus. 

 1885, p. 204=. 



Buceros cultratus, Sundev. OEfv. Vet.-Ak. Fiirh. 1849, 

 p. 160, 5 ; Hartl. Orn. W.-Afr. p. 161'. 



Ceratogymna elata, Bp. Consp. Vol. Anisod. 1854, p. 2 ; 

 Elliot, Monogr, Bucerot. pi. 23 ; Rochebrune, Faun. Sene- 

 gamb., Ois. p. 118^. 



Hah. W.Africa: Gaboon {Verreaux^) ; St. John's River 

 {McDowell') ; Calabar [Laurein'^) ; Ibadan [Hinderer^) ; 

 Gold Coast {Pel ') ; Denkera, forest in the interior (Ussher^) ; 

 Liberia {Buttikofer^); Sierra, heone {Ajzelius^); Casamanse, 

 Gambia, Senegambia {Rochehrune'). 



