PKEFACE TO THE SEVENTH EDITION. 



THE seventh edition of this List has been prepared on the 

 same plan as that issued in 1877. 



The registered additions to the Menagerie made during 

 the last three years have been inserted in their proper 

 places. 



Many additional references have also been given to the 

 specimens described or alluded to in the Society's ' Proceed- 

 ings ' and ( Transactions/ which, it is believed, will serve to 

 make the List more useful as a work of reference. 



The following Table gives the number of Species of each 

 class of Vertebrates included in the successive editions of 

 this Catalogue: 



P. L. S. 



1st August, 1879. 



