8 



unguiculate mammals of the rest of the world; 'some,' he 

 writes, l corresponding with the Carnivora, some with the 

 Rodentia, and others again with the Edentata, by their teeth 

 and the nature of their food.' They formed a family of the 

 Carnassiers in the first edition of the ' Rtyne Animal 1 , but 

 were raised to the rank of an order under the name Marsupialia 

 in the second edition, where they terminate that series of the 

 Unguiculata, which possess the three kinds of teeth incisors, 

 canines and molars. 



The hoofed animals (UNGULATA, c animaux a sabots ') are 

 binarily divided into those that do, and those that do not, 

 chew the cud; the former constituting the order Pachyder- 

 mata, the latter that of Ruminantia. 



The third primary group or subclass of Mammalia is indi- 

 cated, but without receiving any name distinct from that of 

 the single order Cetacea exemplifying it in the Cuvierian 

 system an order which would be equivalent to the Mutica of 

 the Linnaean system, save that the manatee which Linna3us 

 placed in the same group as the elephant is associated with 

 the whale in the Regne Animal. 



The Mammalian system of CuviER is exemplified in the 

 subjoined Table: (See p. 9). 



Important as was the improvement it presented on previous 

 classifications, the progress of anatomical and physiological 

 knowledge, mainly stimulated by the writings and example 

 of Cuvier himself, soon began to make felt the defects of his 

 system. Shortly after its proposition, the zoological mind 

 began to be disagreeably impressed by the results of the ap- 

 plication of the characters employed by Cuvier in the forma- 

 tion of the primary and secondary groups of the class ; the 

 sloth, for example, being placed above the horse, the mole 

 above the lynx, and the bat above the dog : even the Orni- 

 thorhynchus paradoxus shewn by accurate anatomical scru- 

 tiny to be the most reptilian of the mammalian class takes 



1 8vo., 1816. 



