Castor caecator
Bangs 1913
Castor canadensis phaeus
Heller 1909
Castor canadensis acadicus
Bailey and Doutt 1942
Castor canadensis baileyi
Nelson 1927
Castor canadensis belugae
Taylor 1916
Castor canadensis caecator
Bangs 1913
Castor canadensis canadensis
Kuhl 1820
Castor canadensis carolinensis
Rhoads 1898
Castor canadensis concisor
Warren and Hall 1939
Castor canadensis duchesnei
Durrant and Crane 1948
Castor canadensis frondator
Mearns 1897
Castor canadensis idoneus
Jewett and Hall 1940
Castor canadensis labradorensis
Bailey and Doutt 1942
Castor canadensis leucodontus
Gray 1869
Castor canadensis mexicanus
Bailey 1913
Castor canadensis michiganensis
Bailey 1913
Castor canadensis missouriensis
Bailey 1919
Castor canadensis pallidus
Durrant and Crane 1948
Castor canadensis repentinus
Goldman 1932
Castor canadensis rostralis
Durrant and Crane 1948
Castor canadensis sagittatus
Benson 1933
Castor subauratus shastensis
Taylor 1916
Castor subauratus subauratus
Taylor 1912
Castor canadensis taylori
Davis 1939
Castor canadensis texensis
Bailey 1905