MAMMALS 339 



Choloepus Hoffmani — Two-toed sloth. 



Tolypeutes tricinclus — Three-banded 

 armadillo. 

 Order — Cetacea. 

 Types of Order. 



Physeier macrocephalus — Sperm whale. 



Baloena mysiicetus — Greenland whale. 



Delphinus delphis — Dolphin. 

 Order — Sirenia. 

 Types of Order. 



Trichechus latirostris — Manatee. 



Dugong australis — Dugong. 

 Order — Ungulata. j 



Types of Order. 



Rhinoceros unicornis — Rhinoceros. 



Hippopotamus amphibus — Hippopotamus, 



Bos {several species) — Ox. 



Camelus dromedarius — Dromedary. 



Camelus bactrianus — Two-humped camel. 



Lama llama — Llama. 



Lama pacos — Alpaca. 



Elephas africanus 



E,, , .,• I Elephant. 



Llephas indicus J ^ 



Order — Carnivora. /- 



Types of Order. 



Procyon lotor — Racoon. 



TJrsus americanus — Black bear. 



TJrsus horribilis — Grizzly bear. 



Felis tigris — Tiger. 



Felis leo — Lion. 



Phoca vitulina — Seal. 



Callotaria ursina — Fur seal. 



Odobenus obesus — Walrus. 

 Order — Rodentia. - ' 

 Types of Order. 



Mus norvegicus — Rat. 



Erethizon dorsaius — Porcupine. 



Cynomys ludovicianus — Prairie dog. 



