INTRODUCTION. 



xv 



1871. G. R. Gray, Annals and Magazine of Natural History. 



BUCEROS (PHOLIDOPHALUS) CASUARINUS described from a head. Species 47. 



1872. T. C. Jerdon, Ibis. 



BUCEROS AUSTENI described. Species 48. 



1873. R. B. Sharpe, Zoological Record for 1871. 



BUCEROS (ANORRHINUS) LEUCOLOPHUS separated from A. albo-cristatus, 

 Species 49. 



1873. D. G. Elliot, Ibis. 

 PHOLIDOPHALUS SHARPII described as Buceros sharpii. Species 50. 



1873. Barboza du Bocage, Proceedings of the Zoological Society of London. 



A paper chiefly upon the three forms of B. abyssinicus, two of which are considered good 

 species, viz. B. abyssinicus and B. caper. The third, B. guineensis of the author, is probably 

 the young of B. pyrrhops, Elliot. 



1873. A. Hume, Stray Feathers. 



A small form of R. plicatus from Narcondam Island, described as R. NARCONDAMI. 

 Species 51. 



1874. Murie, Proceedings of the Zoological Society of London. 



A paper describing the nature of the food-sac ejected by the Hornbills, and proving it to be 

 the epithelial lining of the gizzard. 



1876. R. B. Sharpe, Transactions of the Linnean Society. 

 CRANORRHINUS WALDENI described. Species 52. 



1877. D. G. Elliot, Annals and Magazine of Natural History. 



BUCEROS PYRRHOPS from the Congo described as distinct, and the three conspecies of 

 the genus, as given by Schlegel, considered as probably representing distinct species. Species 53. 



1877. Lord Tweeddale, Proceedings of the Zoological Society of London. 



The following Hornbills are described :— HYDROCORAX MINDANENSIS as Buceros 

 mindanensis, HYDROCORAX SEMIGALEATUS, also in the genus Buceros, and PENE- 

 LOPIDES AEEINIS. Species 56. 



1877. D. G. Elliot, Annals and Magazine of Natural History. 



ANTHRACOCEROS ERATERCULUS from Cochin China described. Species 57. 



1877. Cabanis and Reichenow, Journal fur Ornithologie. 

 BYCANISTES ALBOTIBIALIS described, as Buceros albotibialis. Species 58. 



1880. Oustalet, Bulletin de l'Association Scientifique de Erance. 

 LIMONOPHALUS MONTANI described as Buceros montani. Species 59. 



1880. Cabanis, Journal fur Ornithologie. 



BUCEROS (BYCANISTES) SUBQUADRATUS, from Angola, described. Species 60. 



