INTRODUCTION. 7 



Every " type-specimen " is distinguished by a small disk of 

 green paper affixed to it ; and upon the label is a reference to 

 the work in which such " type-specimen " has been figured and 

 described. 



It is only proper to state here that this Gallery has been 

 entirely arranged by Mr. William Davies, F.G.S., with the 

 assistance of Mr. Arthur Smith Woodward. 



Mr. William Davies has devoted upwards of twenty-five 

 years to a careful study of the Fossil Fishes in the Collection, 

 and the writer is indebted to him for many facts and observa- 

 tions embodied in the following pages. 



He must further acknowledge his indebtedness to Dr. K. H. 

 Traquair, F.R.S., for much valuable help derived from the 

 Notes of his " Swiney Lectures" on Fishes, delivered at the 

 Natural History Museum, in June 1883 ; also to Dr. Albert 

 Giinther, F.R.S., Keeper of the Zoological Department, from 

 whose work, "An Introduction to the Study of Fishes" (1880), 

 he has made copious extracts. 



HENRY WOODWARD. 



Department of Geology, 

 January, 1885. 



