3 



Section B. PIN NAT A. 



Limbs fin- shaped. 



OBDEE 7. PINNIPEDIA. Eared and common Seals, Walrus, Sea 



Elephant, &c. 



8. DEINOTHEEIA.- Deinotherium, Toxodon. 

 9. SIEENIA. Manatee, Dugong, &c. 

 10. ZEUGLODONTIA. Zeuglodon, &c. 

 11. CETACEA. Whales, Dolphins, Porpoises. 



Section C. UNGULATA. 



Limbs furnished with hoofs. 



12. AETIODACTYLA. Hippopotamus, Pig, Camel, Deer, 



Sheep, Ox, &c. 

 13. PEKISSODACTYLA Horse, Tapir, Ehinoceros, Hyrax, 



&c. 

 ' U. PEOBOSCIDEA. Elephant, Mastodon, &c. 



Section D. SU3-UNGULATA. 



Limbs furnished with hoof-like claws. 



16. EDENTATA. Megatherium, Sloth, Aard-vark, Arma- 

 dillo, Ant-eater, &c. 



SUB-CLASS II. IMPLACENTALIA. 



Animals destitute of the placenta ; the foatus not connected to the 

 womb. . 



OEDEB 16. MONOTEEMATA. Australian Hedge-hog, Duck-biUed 



Platypus. 



17. MAESUPIALIA. Kangaroo, Wombat, Opossum, Native 

 Cat, &c. 



