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INTRODUCTION. 



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provinces. In the second part of the same journal the writer reviews the species of Asiatic 

 Hornbills known to him, and makes some valuable communications regarding doubtful and bad 

 species, and corrects some errors in synonymy. Species 36. 



1845. Gray and Mitchell, Genera of Birds. 



In this great work the family Bucerotid^e is composed of one subfamily, Bucerotince, 

 consisting of three genera, Euryceros, Btjceros, and Bttcorvus. The first of these contains 

 B. prevosti from Madagascar, which is not a Hornbill. The genus Btjceros is made to contain 

 all the species excepting abyssinicus. Thirty-seven are given in all, of which thirty-two are 

 valid — the incorrect ones being B. homrai, Hodgson (=bicornis, Linn.), violaceus, Shaw 

 (=coronatus, Bodd.), sulcatus, Temm. (=leucocephalus, Yieill.), lugwbris, Begbie (=comatus, 

 Baffles), cinerascens, Temm. (=grjseus, Lath.), pcecilorliynchus, Lafr. (=nasutus juv., Linn.), 

 pica, Scop. (=rCORONATUs, Bodd.), pllcatus, Lath. (=plicatus, Forst.), ginginianus, Lath. 

 (=btrostris, Scop.). The genus Bucorvtjs consists of a single species, abyssinicus. 



1847. Blyth, Journal of the Asiatic Society of Bengal. 

 The female of Anthracoceros malabaricus is described as Buceros nigrirostris. 



1849. Sundevall, Ofversight af Kongl. Vetenskaps-Akademiens Porhhandlingen. 

 The female of B. elatus, Temm., described as B. cultratus. 



1850. J. Cassin, Journal of the Academy of Natural Sciences of Philadelphia. 



A. ITSTULATOB, from Fantee and A. ALBO-CRISTATUS from the Gaboon described. 

 Species 38. 



1850. Blyth, Journal of the Asiatic Society of Bengal. 

 A. malabaricus, Gmel., from the Deyra Boon, is named B. affinis, and Hutton quoted as 

 the authority for the species. 



1850. Bonaparte, Conspectus Generum Avium. 



The family Bucerotim is made to contain two subfamilies, Bucerotince and Euricerotince. 

 The latter contains but a single species, which is not a Hornbill. Many genera are created for 

 the reception of the groups as selected, some of which it will be necessary to accept. The first is 

 Bucorvtjs, containing six species— abyssinicus, elatus, atratus, cristatus, buccinator, and 

 cylindricus. Next is Buceroturus with a single species, vigil, Eorst., called galeatus. 

 Buceros, the third genus, has six species— hydrocorax (=planicornis, Merrem), bicornis, 

 rhinoceros, rhinoceroides, sublunatm (these last two being races of rhinoceros), and lunatus 

 (which is sylvestris, Yieill.). Hydrocissa, the fourth genus, has also six s V ecies- m0 noceros, 

 Shaw (^coronatus, Bodd.), pica, Scop. (=coronatus, Bodd.), galeritus, violacem, Shaw (=coro- 

 natus, Bodd.), malayanus, and exarhatus. Calao is divided into three subgenera: the first, 

 Oassidix, contains cassidix and corrugatus; the second is Calao, with plicatus, ex Java 

 (=undulatus, Shaw), and ruficollis (=plicatus, Forst.) ; and the third, Aceros, with nepalensis. 



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