6 



ON CLASSIFICATION. 



rated in an order and arrangement, the purpose of which will 

 appear more fully by and by, in the following table. 



TABLE OF THE CLASSES OF THE 

 ANIMAL KINGDOM. 



The Limits of the Four Cuvierian Sub-Kingdoms are indicated 



by the Brackets and Dotted Line. 



Kadi ata. 



Brachiopoda. 

 Ascidioida. 



Lamellibranchiata. 



Br anchiog aster opoda. 

 Pulmog aster opoda. 

 Pteropoda. 

 Cephalopoda. 



' MOLLUSCA. 



Pisces. 

 Amphibia. 

 Pieptilia. 

 Aves. 

 Mammalia. , 



> Vertebrata. 



