106 



NATURAL HISTORY 



Clocss I 



Ela5mobranchn 



Class IE 

 Holocepholi 



(1^ 



Chimaera 

 spook fislT. 



(B) Superclass PISCES 



FISHES PROPER. 



1£> 



Protopterus 



lungfish 



Class 12: 



9^ 



'Pe^rccc 



class "JT 



Tsleostei 



