S64 MAMMALS. 



Systematic Survey of the Orders of Mammalia. 



I. Sub-Class — Prototheria or Ornithodelphia — Order 



Monotremata. 

 II. „ — Metatheria or Didelphia — Order Mar- 



supialia. 



III. „ EUTHERIA or MONODELPHIA Or PlACEN- 



TALIA. 



Orders of Eutheria. 



1. Edentata. 



2. Sirenia. 



3. Ungulata. 



Artiodactyla ) tt 1 ,. ir 

 Perissodactyla} Ungulata Vera. 



Hyracoidea. 

 Proboscidea. 

 Extinct sub-orders. 



4. Cetacea. 



Mystacoceti — baleen cetaceans. 

 Archaeoceti — (extinct types). 

 Odontoceti — toothed cetaceans. 



5. Rodentia. 



Simplicidentata. 

 Duplicidentata. 



6. Carnivora. 



Carnivora Vera. 

 Pinnipedia. 

 Creodonta (extinct). 



7. Insectivora. 



Insectivora Vera. 

 Dermoptera. 



8. Chiroptera. 



Megachiroptera. 

 Microchiroptera. 



9. Lemuroidea. ) ^ ■ , 

 10. Anthropoidea.| = P'"™^*^^- 



Hapalidae. 



Cebida, 



Cercoptthectdcf 



Simtidae. 



Hbmtnidce. 



