Castor canadensis Kuhl 1820

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Castoridae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 842-842 : 842

Castor canadensis Kuhl 1820

Castor canadensis Kuhl 1820 , Beitr. Zool. Vergl. Anat., 1: 64.

Type Locality: Canada, Hudson Bay.

Vernacular Names: American Beaver.

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

Distribution: Alaska and Canada south of the Arctic Circle (including Vancouver and Newfoundland), most of the continental United States (absent from parts of SW USA and from most of Florida), extending into N Mexico. See Hall (1981:604). Introduced to Tierra del Fuego (South America) and Eurasia, including Finland, NW Russia, Poland, Germany, and Austria.

Conservation: IUCN – Data Deficient as C. c. phaeus (from Admiralty Island in Alaska’s Alexander Archipelago); Not Evaluated as C. c. frondator and C. c. mexicanus ; otherwise Lower Risk (lc).

Discussion: Reviewed by Jenkins and Busher (1979, Mammalian Species, 120). With the exception of pacificus (type locality Cascade Mtns, Washington), which was held in synonymy with leucodontus (type locality Vancouver Isl, British Columbia), Hall (1981) recognized all named forms as valid subspecies. Pending a critical review, no subspecies are recognized here.