KEY TO LAND MAMMALS OF NORTHEASTERN NORTH AMERICA 65 



SYNOPSIS^ 

 Class MAMMALIA : mammals, p. 76 

 Subclass METATHERIA : marsupials, p. 76 

 Order MARSUPIALIA : marsupials, p. 77-78 

 Suborder POLYPROTODONTIA : polyprotodont marsupials 

 Family DIDELPHIDIDAE : opossums, p. 77-78 

 Genus Didelphis Linnaeus: p. 78 



1 Didelphis virginiana Kerr: opossum, p. 78 



Represented by: 

 Didelphis virginiana virginiana Kerr: northeastern 

 opossum, p. 78 



Subclass EUTHERIA : placental mammals, p. 76 



Order UNGULATA : hoofed mammals, p. 78 



Suborder ARTIODACTYLA : even-toed hoofed mammals, 



p. 78 

 Family BOVIDAE : cattle, p. 79 

 Genus Bison Hamilton Smith: p. 79 



2 Bison bison (Linnaeus): American bison, p. 79 



Represented by : 

 Bisonbison bison (Linnaeus): American plains bison, p. 79 

 Family CERVIDAE: deer, p. 79 

 Genus Rangifer Hamilton Smith: p. 80 



3 Rangifer caribou (Gmelin): woodland caribou, p. 80 



4 Rangifer terraenovae Bangs: Newfoundland caribou, p. 81 



5 Rangifer arcticus (Richardson) : barren ground caribou, p. 81 



Genus Alces Jardine: p. 81 



6 Alces americanus Jardine: eastern moose, p. 81 



Genus Cervus Linnaeus : p. 82 



7 Cervus canadensis (Erxleben) : east American wapiti, p. 82 



Genus Odocoileus Rafinesque: p. 82 



8 Odocoileus americanus (Erxleben) : Virginia deer, p. 82 



Represented by : 

 Odocoi^leus americanus americanus ( Erxleben) : 



southern Virginia deer, p. S^ 

 Odocoileus americanus borealis Miller : northern 



Virginia deer, p. 8^ 



iThe arrangement oC the higher groups Is that adopted by Klowor anil Lyd<»kk»n\ 



