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TOCKUS MELAN0LEUCU8 



BLACK-AND-WHITE HOENBILL 



Buceros melanoleucus, Licht. (nee Vieill.), Cat. Rer. Nat. rar. Hamb. (1793) p. 8. no. 90; Bechst. Lath. Uebers. 



vol. ii. (1794) p. 362; id. Kurze Uebers. p. 170; Licht. Verz. Doublet. (1823) p. 21 ; Wagl. Syst. Av. (1827) ; 



Gray, Gen. B. (1847) vol. ii. p. 400. sp. 29; Hartl. Ornith. Ost-Afr. (1857) p. 164; Schleg. Mus. Pays-B.' 



(1862) p. 12. 

 Le Calao couronne, Le Vaill. Hist. Nat. Ois. Afriq. (1806) vol. v. p. 117, pis. 234 & 235. 

 Buceros coronatus, Wilkes? Ency. Lond. (1808) vol. iii. p. 480; Shaw (nee Bodd.), Gen. Zool. (1811) p. 35; Vieill. 



Nonv. Diet. Hist. Nat. (1816) vol. iv. p. 593; id. Ency. Meth. (1823) vol. i. p. 401, pi. 240. fig. ^Tenim. 



Plan. Col. (1824) vol. ii. sp. 16 (text) ; Ersch n. Grub. Ency. (1824) p. 285 ; Wagl. Syst. Av. (1827) sp. 17; 



Less. Trait. Ornith. (1831) p. 253. sp. 4; Swains. Zool. Illust. 1st ser. vol. iii. pi. 178; id. B. W. Afr. vol. ii. 



p. 257; Layard, B. of S. Afr. p. 225; id. Ibis (1869) p. 372. 

 Tockus melanoleucus, Bon. Consp. Gen. Av. (1850) p. 91. sp. 7; Hartl. Journ. fur Ornith. (1854) p. 128. sp. 393; 



Horsf. & Moore, Cat. Birds Mus. E.-Ind. Co. (1856-8) vol. ii. p. 597. sp. 881 ; Gurney, Anderss. Birds 



DamaraLand (1872) p. 208; Layard, B. of S. Afr., Sharped ed. (1875) p. 127. sp. 119; Bocage, Ornith. 



Angola (1878) p. 116; Nichols. Proc. Zool. Soc. (1878) p. 358. 

 Rhynchoceros melanoleucus, Bon. Consp. Vol. Anisod. (1854) p. 3, gen. 16. sp. 41. 

 Lophoceros melanoleucus, Cab. & Heine, Mus. Hein. (1860) p. 168. 

 Toccus coronatus, Gurney, Ibis (1861) p. 133. 

 Toccus melanoleucus, Gurney, Ibis (1862) p. 157; Sclat. Proc. Zool. Soc. (1864) p. Ill ; Kirk, Ibis (1864) p. 327 ; 



Bocage, Journ. Sc. Math. Lisb. (1868) vol. ii. p. 347. sp. 98; Gulliv. Proc. Zool. Soc. (1872) p. 16, (1875) 



p. 490; Sclat. Eev. List Vert. Anim. (1872) p. 172. sp. 281. 

 Buceros pallidirostris , Hartl. & Finsch, Von der Deck. Beis. Ost-Afr. (1870) p. 871; Bocage, Journ. Sc. Math. 



Lisb. (1870) vol. ii. p. 348. sp. 100 ; Gray, Hand-1. B. pt. ii. (1870) p. 130. sp. 7907. 

 Buceros {Lophoceros) melanoleucus, Gray, Hand-1. B. pt. ii. (1870) p. 130. sp. 7906. 

 Tockus pallidirostris, Bocage, Ornith. Angola (1878) p. 117. 



Sunguiandondo in Angola (Bocage). 



Hab. ftiver-Shire valley, east coast, in open bush and low trees (Kirk) ; Darra-Salam (Nicholson) ; west 

 coast, in Angola, Ovampo-land, and Damara-land (Andersson). 



This is one of the species of this family whose synonymy is very much confused. It was first 

 described by Lichtenstein in 1793 {I. c.) as Buceros melanoleucus, and afterwards by Shaw {I. c.) 

 as B. coronatus, A pale variety subsequently received the name of pallidirostris from Einsch and 

 Hartlaub (I <?.). The majority of authors employed Shaw's name for the species, which was 

 confounded with coronatus of Boddaert, a name bestowed upon an entirely different bird. It 



