ON THE 



NATURAL HISTORY 



AND 



CLASSIFICATION 



OF 



MONOCARDIAN ANIMALS. 



VOL. XL 



PART I. 



ON THE ACANTHOPTERYGES, OH SPINE-RAYED ORDER 



OF FISHES. 



CHAPTER I. 



OK THE VARIOUS TRIBES COMPOSING THIS ORDER, AND THEIR 

 NATURAL RELATION TO OTHERS. 



(!•) The order of fishes witli wMcli we commence this 

 volume is more numerous in its contents than those of 

 aU the others put together of this class of animals. 

 This inequality^ at first sights may appear at variance 

 with that proportion which nature preserves in her 

 great divisions ; yet it will be found^ on more atten- 

 tive consideration^ that it is only another proof of the 



VOL. II. B 



