228 



OSTEICHTHYES 



Polv prerini 



V Coelacanfhini 

 '. • • 



Osteolepidofi ; / 



Teleosromi 



Osreichrhyes 



Diagram III. 



Diagram illustrating the Phylogeny of the Osteichthyes, and the distribution of the 

 Families in the geological strata. 



