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XIV 



INTRODUCTION. 



1856. J. Cassin, Proceedings of the Academy of Natural Sciences of Philadelphia. 

 TOCKUS CAMURUS described. Species 41. 



1859. Cabanis and Heine, Museum Heineanum. 



A catalogue of the species contained in the collection of M. Heine is given. Many new 

 genera are adopted, and some proposed, while the names of others are changed. The new genera 

 are Blatyceros for hydrocorax (=planicornis, Merrem), Sphagolobus for atbatus, Temm., 

 Bycanistes for buccinator, Temm., and Cranorrhinus for cassidix, Temm. No new species 

 are described. 



1860. Gould, Proceedings of the Zoological Society of London. 

 TOCKUS HARTLAUBI described. Species 42. 



1862. Schlegel, Museum d'Histoire Naturelle des Pays-Bas. 

 A list of the species in the Museum of Leyden is here given. Nearly all the known species 

 are enumerated, and one described as new — B. CAPER. All are included in one genus, Buceros. 

 B. rhinoceros is divided into three races — B. rhinoceros sumatranus from Sumatra, B. rhinoceros 

 borneoensis from Borneo, and B. rhinoceros lunatus (=sylvestris, Vieill.) from Java. To 

 B. abtssinicus are also assigned three races, viz. B. carunculatus abyssinicus from Abyssinia, 

 B. carunculatus guineensis from "West Africa, and B. carunculatus cafer from Caffraria. The first 

 and last of these only are in this Monograph considered entitled to specific rank. Species 43. 



1862. Schlegel, Nederlandsch Tijdschrift voor de Dierkunde. 

 Tockus hartlaubi redescribed as Buceros nagtglasii. 



1863. Schlegel, Nederlandsch Tijdschrift voor de Dierkunde. 

 Buceros (Tockus) camurus redescribed as B. pulchrirostris. 



1864. Tickell, Ibis. 



An account of the Hornbills of India and Burmah, with an interesting history of the habits 

 of some of the species, is here given, and T. tickelli, Blyth, more particularly described. 



1865. Hartlaub, Proceedings of the Zoological Society of London. 

 TOCKUS MONTEIRI described. Species 44. 



Tockus plavirostris redescribed as T. elegans. 



1869. Cabanis, von der Decken's Reisen in Ost- Africa, part iii. 

 BUCEROS (TOCKUS) DECKENI described. Species 45. 



1870. Pinsch and Hartlaub, von der Decken's Reisen in Ost-Africa. 



The species of this family inhabiting East Africa are here given, with their synonymy. 

 Seven in all are recorded ; no new ones described. 



1870. Sclater, Proceedings of the Zoological Society of London. 



BUCEROS (BYCANISTES) SUBCYLINDRICUS described. Species 46. 

 1870. Hartlaub and Pinsch, von der Decken's Reisen in Ost-Africa. 



Tockus melanoleucus redescribed as Buceros pallidirostris. 





