PEEFACE. 



The preparation of the present work was sanctioned by the Council 

 on March 20, 1890, and entrusted by them to Mr. A. W. Kappel, 

 Assistant Librarian to the Society, who has spared neither time nor 

 trouble in its compilation. It forms a complete Index to the first 

 twenty volumes of the ' Journal of the Linnean Society : Zoology,' 

 so far as they relate to Zoology ; up to and including the part 

 issued in August 1891, which contains the Proceedings from 

 November 1888 to June 1890. The work is as far as possible 

 uniform with the Index to the first twenty volumes of the Journal 

 of Botany, published in 1888. 



The Index has been compiled throughout from the original 

 Journals, and the table of the dates of publication of the Pro- 

 ceedings and Journals has been specially compiled for this volume 

 with great care, and may be relied on as complete and accurate. 



In the case of papers mentioned in the ' Proceedings ' which were 

 published in the Society's ' Transactions,' or in Vol. XXI. of the 

 ' Journal,' the additional references have been added to render the 

 Index practically complete. Occasional reference has also been 

 made to the Journal of Botany, in cases where Zoological subjects 

 or species of animals have been incidentally mentioned therein. 



The names of species are printed throughout in roman, and 

 synonyms in italics. An asterisk has been appended to every name 

 of a genus or species which appeared to be new. Authors' names 

 have been added to every genus and species; but the frequent 

 omission of these in the original has enormously increased the time 

 and labour required for the preparation of this Index, especially in 

 groups of which no complete or recent catalogue exists. We 



