SURVEY OF THE ORDERS OF MAMMALIA. 715 



SYSTEMATIC SURVEY OF THE ORDERS OF MAMMALIA. 



I. Sub-class PROTOTHERIA or ORNITHODELPHIA, Orders 



Monotremata, and Allotheria or Multi- 

 tuberculata. 



II. ,, METATHERIA or DIDELPHIA, Orders Poly- 



protodontia and Diprotodontia. 



III. EUTHERIA or MONODELPHIA. 



Orders of EUTHERIA. 



1. Xenarthra. -\ 



XT ,, ' Edentates.' 



2. Nomarthra. I 



3. Sirenia. 



4. Ungulata. 



Artiodactyla \ Ungulata Ve ra. 



Penssodactyla. J 

 Hvracoidea. 



j 



Proboscidea. 

 Extinct sub-orders. 



5. Cetacea. 



Mystacoceti baleen cetaceans. 

 Archa^oceti (extinct types). 

 Odontoceti toothed cetaceans. 



6. Rodentia. 



Simplicidentata. 

 Duplicidentata. 



7. Carnivora. 



8. Pinnipedia. 



9. Insecti vora. 



10. Galeopithecidre or Dermaptera. 

 n. Chiroptera. 



Megachiroptera. 

 Microchiroptera. 



12. Prosimiai or Lemuroidea.^ 



. ,, ., = Primates. 



13. Antnropoidea. 



