28 NEW YORK ZOOLOGICAL SOCIETY. 



DERIVATION OF NORTH AMERICAN MAMMALS. 



D I DELPHI DAE : MARSUPIALS. 



Didelphys, Opossum ......... North American, of great antiquity. 



DASYPODIDAE: EDENTATES. 



Cabassous, Armadillo ............................ South American. 



ERITHIZONTIDAE: RODENTS. 



Porcupines ...................................... South American. 



HAPLODONTIDAE: ^ 



Sewellel, , T 



GEOMYWAB: \ ............................... North A can - 



Pouched Rats, J 

 Other Families .............................. Eurasiatic or Cosmopolitan. 



BOriDAE: UNGULATES. 



Ovibos, Musk-Ox, \ 



Bison, Buffalo, I Eurasiatic, possibly of remote African 



Ovis, Mountain Sheep, f origin. 



Oreamnos, Mountain Goat, J 

 CERVIDAE: 



Boreal or Eurasiatic. 



Cervus, Wapiti ........................................ Eurasiatic. 



Odocoileus, American Deer ....................... North American. 



ANTILOCAPRIDAE: 



Antilocapra, Prong-Horn ......................... North American. 



DICOTYLIDAE: 



Dicotyles, Peccary ............................... North American. 



URSIDAE- CARNIVORES. 



Brown Bear Group, 

 MUSTELIDAE: 



Taxidea, Badger, "| 



Mephitis, ) C1 , r ' ........................... North American. 



Spilogale, \ Skunks ' i 



Gulo, Wolverine, "\ 



Mustela, Marten, 



Putorius, Mink, V ..................................... Eurasiatic. 



Lutra, Otter, 



Latax, Sea Otter, J 

 PROCYONIDAE: 



Bassariscus, Cacomistle, ^ 



Procyon, Raccoon, h ........................ North American. 



Nasua, Coati Mundi, 

 CAN I DAE: 



Urocyon, Grey Fox ................... North American, doubtfully. 



Cams, Wolf, ) ...................... ................... Eurasiatic. 



Vulpes, Fox, J 

 FELIDAE: 



Lynx, Lynx ............................................ Eurasiatic. 



Felis, Puma .................................. Eurasiatic, probably. 



