60 CETACEOUS FISHES. Class IV. 



illustrious Ray,* to place them in the rank of 

 fishes ; and for the same reasons, that first of 

 systematic writers assigns. 



The form of their bodies agrees with that 

 of fishes. 



They are entirely naked, or covered only with 

 a smooth skin. 



They live entirely in the water, and have all 

 the actions of fishes. 



* Who makes two divisions of fishes. 



1 . Pulmone respirantes. 



2. Branckiis respirantes. 



