~ 



LOPHOCEROS NASUTUS. 



BLACK-BILLED HOENBILL. 



Buceros nasutus, Linn. Syst. Nat. vol. i. (1766) p. 154; Gmel. Syst. Nat. (1788) vol. i. p. 361 ; Lath. Ind. Ornith. 



(1790) vol. i. p. 145 ; Shaw, Gen. Zool. (1811) vol. viii. p. 30; Vieill. Nouv. Diet. Hist. Nat. (1816) vol. iv. 



p. 600; Temm. Plan. Col. (1824) vol. ii. sp. 18 (text) ; Ersch n. Grub. Ency. (1824) p. 286; Wagl. Syst. Av. 



(1827) sp. 19 ; Less. Trait. Ornith. (1831) p. 252. sp. 2 ; G. E. Gray, Gen. Birds (1849) vol. ii. p. 400. sp. 32 ; 



Hartl. Ornith. West-Afr. (1857) p. 164 ; Schleg. Mus. Pays-Bas (1862) p. 13; Layard, B. S. Afr. (1867) p. 



227; Finsch & Hartl. Beis. Ost-Afr. (1867) p. 486; Nitzs. Pteryl. Bay Soc. (1867) p. 102; Finsch, Trans. 



Zool. Soc. (1869) vol. vii. p. 277; Ayres, Ibis (1871) p. 260; Giebel, Thes. Ornith. (1872) p. 501. 

 Black-billed Hornbill, Lath. Gen. Syn. (1781) vol. i. p. 354. sp. 10. 

 Calao a bee noir du Senegal, Buff. Planch. Enlum. (1783) no. 890. 

 Le calao nasique, Le Vaill. Hist. Nat. Ois. d'Afriq. (1806) vol. v. p. 120, pi. 236. 

 Buceros nasutus, var. coffer, Dumont, Diet. Sci. Nat. (1817) vol. vi. p. 213 ; Sunclev. (Efvers. Vet. Akad. Forhdlg. 



(1850) p. 108. 

 Buceros (Lophoceros) forskalii, Hemp. & Ehrenb. Symb. Phys., Av. (1828) fol. z, $ . 



Buceros hemileucus, Hemp. & Ehrenb. Symb. Phys., Av. (1828) fol. aa, $ ; Dresser & Blanf. Ibis (1874) p. 338. 

 Buceros hastatus, Cuv. Begn. Anim. (1829) vol. i. p. 446 (note). 

 Buceros pcecilorhynchus, La Fres. Bev. Zool. (1839) p. 237, juv.; Hartl. Ornith. West-Afr. (1857) p. 164; Schleg. 



Mus. Pays-B. (1862) p. 14; Layard, B. S. Afr. (1867) p. 226. 

 Tockus nasutus, Biipp. Syst. Uebers. Vog. N.O.-Afr. (1845) p. 79. sp. 321 ; Bon. Consp. Gen. Av. (1850) p. 91. 



sp. 8; Hartl. Journ. fur Ornith. (1854) p. 128. sp. 39; Horsf. & Moore, Cat. B. Mus. E.-Ind. Co. (1856-8) 



p. 596. sp. 878 ; Von Heugl. Journ. fur Ornith. (1864) p. 271 ; Gurney, Anderss. B. Damaraland (1872) 



p. 206; Dresser & Blanf. Ibis (1874) p. 337; Layard, B. S. Afr. Sharpe ed. (1875) p. 133. sp. 123. 

 Tockus pcecilorhynchus, Bon. Consp. Gen. Av. (1850) p. 91. sp. 9; Hartl. Journ. fur Ornith. (1854) p. 193; Von 



Heugl. Journ. fur Ornith. (1864) p. 271. 

 Grammicus nasutus, Bon. Consp. Vol. Anisod. (1854) p. 3. 

 Grammicus hastatus, Bon. Consp. Vol. Anisod. (1854) p. 3. 

 Lophoceros forskali, Cab. & Heine, Mus. Hein. (1860) Th. ii. p. 167. 

 Toccus pcecilorhynchus, Kirk, Ibis (1864) p. 327. 



Toccus nasutus, Salvad. Cat. Uccelli Mar. Boss, e dei Bogos, p. 55 (418). 

 Buceros forskalii, Dress. & Blanf. Ibis (1874) p. 337. 



Hab. Senegambia, Sennaar, Abyssinia, Limpopo Biver (Ayres) ; Damaraland (Andersson). 



The L. nasutus and the L. birostris, on account of having casques continued anteriorly to a 

 sharp point, and projecting over the maxilla, cannot he retained in the genus Tockus, whose 

 members have merely the culmen slightly elevated into a crest-like ridge. I have therefore 

 adopted for them the term Lophoceros, proposed hy Hemprich and Ehrenberg in 1828 as a sub- 

 genus for the L. nasutus. The present hird has received many names ; and its synonymy has heen 





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