472 



PETROMYZID.E. 



to determine tlie primary division of animals to whicli tlie 

 Amphioxus belongs. 



The vignette closing this second volume, and the History 

 of British Fishes, represents the New Hall and the Barge 

 of the Company of Fishmongers of London. 



The arms on the title-page of the first volume are also those 

 of the Company. 



TRINTED BY SAMUEL BENTI.EY, 

 Doisft Sireet, Fket Slioet. 



