Castor canadensis

Kuhl, 1820

North American Beaver

Taxonomy

Subclass : Theria
Infraclass : Placentalia
Magnorder : Boreoeutheria
Superorder : Euarchontoglires
Order : Rodentia
Suborder : Supramyomorpha
Infraorder : Castorimorphi
Family : Castoridae
Genus : Castor

Species status

Living
Found in the wild
Listed in MSW3 2005

Authority citation

Kuhl, H. 1820. Beiträge zur Zoologie und vergleichenden Anatomie. Hermannsche Buchhandlung, Frankfurt am Main, 212 pp.

Authority publication link

https://www.biodiversitylibrary.org/page/28230860

Original name as described

Castor canadensis

Other common names

American Beaver · Canadian Beaver

Type locality

"Ad fretum Hudsoni, [Hudson Strait or Bay]," Canada.

Biogeographic realm

Nearctic

Country distribution

Canada · United States · Mexico

Subregion distribution

USA(AL,AK,AZ,AR,CA,CO,CT,DE,DC,FL,GA,ID,IL,IN,IA,KS,KY,LA,ME,MD,MA,MI,MN,MS,MO,MT,NE,NV,NH,NJ,NM,NY,NC,ND,OH,OK,OR,PA,RI,SC,SD,TN,TX,UT,VT,VA,WA,WV,WI,WY)

IUCN Red List status

Least Concern

Species Permalink

https://www.mammaldiversity.org/taxon/1001957

Country distribution map

The map below provides a general overview. Most species inhabit only specific regions within countries. Hover over the highlighted regions to see the country name.

Names and synonyms

Present and past (if available) associated names to the species. Click on a name to view its details. If the list is long, scroll down to see more.

Castor canadensis carolinensis

Rhoads, 1898

Family

Castoridae

Root name

carolinensis

Validity status

synonym

Nomenclatural status

available

Type

AMNH M-16601

Type kind

holotype

Type specimen URI

http://portal.vertnet.org/o/amnh/mammals?id=urn-catalog-amnh-mammals-m-16601

Authority page

420

Authority page URI

https://www.biodiversitylibrary.org/page/30007864

Authority publication

Transactions of the American Philosophical Society

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis pacificus

Rhoads, 1898

Family

Castoridae

Root name

pacificus

Validity status

synonym

Nomenclatural status

available

Type

ANSP 8077 (= SNR 1077)

Type kind

holotype

Authority page

422

Authority page URI

https://www.biodiversitylibrary.org/page/30007866

Authority publication

Transactions of the American Philosophical Society

Name usages

  1. Bailey (1936:218, https://www.biodiversitylibrary.org/page/25806133) (information at https://hesperomys.com/a/35313)
  2. Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis leucodontus

J. E. Gray, 1869

Family

Castoridae

Root name

leucodontus

Validity status

synonym

Nomenclatural status

available

Type

BMNH:Mamm:1868.3.19.5 (= BMNH:Mamm:496b)

Type kind

lectotype

Type specimen URI

https://data.nhm.ac.uk/object/0c07e793-c093-46d8-be3c-49b100cf69be

Authority page

293

Authority publication

Annals and Magazine of Natural History

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis labradorensis

V. O. Bailey & Doutt, 1942

Family

Castoridae

Root name

labradorensis

Validity status

synonym

Nomenclatural status

available

Type

CM 17875

Type kind

holotype

Authority page

86

Authority publication

Journal of Mammalogy

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor caecator

Bangs, 1913

Family

Castoridae

Root name

caecator

Validity status

synonym

Nomenclatural status

available

Type

MCZ:Mamm:BANGS-6979

Type kind

holotype

Type specimen URI

https://mczbase.mcz.harvard.edu/guid/MCZ:Mamm:BANGS-6979

Authority page

513

Authority page URI

https://www.biodiversitylibrary.org/page/2815705

Authority publication

Bulletin of the Museum of Comparative Zoology

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor subauratus

W. P. Taylor, 1912

Family

Castoridae

Root name

subauratus

Validity status

synonym

Nomenclatural status

available

Type

MVZ:Mamm:12654

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/MVZ:Mamm:12654

Authority page

167

Authority page URI

https://www.biodiversitylibrary.org/page/29435114

Authority publication

University of California Publications in Zoology

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis phaeus

E. Heller, 1909

Family

Castoridae

Root name

phaeus

Validity status

synonym

Nomenclatural status

available

Type

MVZ:Mamm:209

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/MVZ:Mamm:209

Authority page

250

Authority page URI

https://www.biodiversitylibrary.org/page/29393540

Authority publication

University of California Publications in Zoology

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis belugae

W. P. Taylor, 1916

Family

Castoridae

Root name

belugae

Validity status

synonym

Nomenclatural status

available

Type

MVZ:Mamm:4224

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/MVZ:Mamm:4224

Authority page

429

Authority page URI

https://www.biodiversitylibrary.org/page/29524855

Authority publication

University of California Publications in Zoology

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis sagittatus

Benson, 1933

Family

Castoridae

Root name

sagittatus

Validity status

synonym

Nomenclatural status

available

Type

MVZ:Mamm:43906

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/MVZ:Mamm:43906

Authority page

320

Authority publication

Journal of Mammalogy

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis taylori

W. B. Davis, 1939

Family

Castoridae

Root name

taylori

Validity status

synonym

Nomenclatural status

available

Type

MVZ:Mamm:67588

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/MVZ:Mamm:67588

Authority page

273

Authority publication

Caldwell

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis concisor

E. R. Warren & E. R. Hall, 1939

Family

Castoridae

Root name

concisor

Validity status

synonym

Nomenclatural status

available

Type

MVZ:Mamm:84521

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/MVZ:Mamm:84521

Authority page

358

Authority publication

Journal of Mammalogy

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis idoneus

Jewett & E. R. Hall, 1940

Family

Castoridae

Root name

idoneus

Validity status

synonym

Nomenclatural status

available

Type

MVZ:Mamm:86941

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/MVZ:Mamm:86941

Authority page

87

Authority publication

Journal of Mammalogy

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis duchesnei

Durrant & Crane, 1948

Family

Castoridae

Root name

duchesnei

Validity status

synonym

Nomenclatural status

available

Type

UMNH:Mamm:4625

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/UMNH:Mamm:4625

Authority page

413

Authority page URI

https://www.biodiversitylibrary.org/page/2807318

Authority publication

University of Kansas Publications, Museum of Natural History

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis rostralis

Durrant & Crane, 1948

Family

Castoridae

Root name

rostralis

Validity status

synonym

Nomenclatural status

available

Type

UMNH:Mamm:5199

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/UMNH:Mamm:5199

Authority page

411

Authority page URI

https://www.biodiversitylibrary.org/page/2807316

Authority publication

University of Kansas Publications, Museum of Natural History

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis pallidus

Durrant & Crane, 1948

Family

Castoridae

Root name

pallidus

Validity status

synonym

Nomenclatural status

available

Type

UMNH:Mamm:719

Type kind

holotype

Type specimen URI

https://arctos.database.museum/guid/UMNH:Mamm:719

Authority page

409

Authority page URI

https://www.biodiversitylibrary.org/page/2807314

Authority publication

University of Kansas Publications, Museum of Natural History

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis texensis

V. O. Bailey, 1905

Family

Castoridae

Root name

texensis

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:135744

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3de81e5ec-ac62-476f-b2cd-1d0a22e72b14

Authority page

122

Authority page URI

https://www.biodiversitylibrary.org/page/25801781

Authority publication

North American Fauna

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis repentinus

E. A. Goldman, 1932

Family

Castoridae

Root name

repentinus

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:161613

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3b2d05f9a-be4d-4346-9d2c-473746d4a857

Authority page

266

Authority publication

Journal of Mammalogy

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis michiganensis

V. O. Bailey, 1913

Family

Castoridae

Root name

michiganensis

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:170561

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3544e8627-4c58-402c-bfcc-17610577634c

Authority page

192

Authority page URI

https://www.biodiversitylibrary.org/page/3337847

Authority publication

Proceedings of the Biological Society of Washington

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis acadicus

V. O. Bailey & Doutt, 1942

Family

Castoridae

Root name

acadicus

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:174525

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3a6f552fc-245e-42a0-9d2b-59cb8f279e02

Authority page

87

Authority publication

Journal of Mammalogy

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis missouriensis

V. O. Bailey, 1919

Family

Castoridae

Root name

missouriensis

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:205763

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/36c8a0605-8c91-4097-8224-aa3afb75ca46

Authority page

32

Authority page URI

https://www.biodiversitylibrary.org/page/52847995

Authority publication

Journal of Mammalogy

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis frondator

Mearns, 1897

Family

Castoridae

Root name

frondator

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:20750 (= USNM:MAMM:A35883)

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3cf4f2cf4-7326-42cb-8488-d3c4e49e1ff9

Authority page

502

Authority page URI

https://www.biodiversitylibrary.org/page/15838317

Authority publication

Proceedings of the United States National Museum

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis baileyi

E. W. Nelson, 1927

Family

Castoridae

Root name

baileyi

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:228006

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3409169e8-bc50-4eb6-ac56-eba9f383ac10

Authority page

125

Authority page URI

https://www.biodiversitylibrary.org/page/34550815

Authority publication

Proceedings of the Biological Society of Washington

Name usages

  1. Bailey (1936:223, https://www.biodiversitylibrary.org/page/25806138) (information at https://hesperomys.com/a/35313)
  2. Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor subauratus shastensis

W. P. Taylor, 1916

Family

Castoridae

Root name

shastensis

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:50978

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3416176fe-f35f-442a-958c-8e35fad087a3

Authority page

433

Authority page URI

https://www.biodiversitylibrary.org/page/29524867

Authority publication

University of California Publications in Zoology

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis mexicanus

V. O. Bailey, 1913

Family

Castoridae

Root name

mexicanus

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:96522

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3292b49e8-5341-4798-a3a5-5b2f34580df1

Authority page

191

Authority page URI

https://www.biodiversitylibrary.org/page/3337967

Authority publication

Proceedings of the Biological Society of Washington

Name usages

Helgen (2005) (information at https://hesperomys.com/a/9678)

Castor canadensis shastensis

V. O. Bailey, 1936

Family

Castoridae

Root name

shastensis

Validity status

synonym

Nomenclatural status

name_combination

Authority page

222

Authority page URI

https://www.biodiversitylibrary.org/page/25806137

Authority publication

North American Fauna

Name usages

Bailey (1936:222, https://www.biodiversitylibrary.org/page/25806137) (information at https://hesperomys.com/a/35313)

Castor canadensis

Kuhl, 1820

Family

Castoridae

Root name

canadensis

Validity status

species

Nomenclatural status

available

Authority page

64

Authority page URI

https://www.biodiversitylibrary.org/page/28230860

Authority publication

Frankfurt am Main

Name usages

  1. Bailey (1936:218, https://www.biodiversitylibrary.org/page/25806133) (information at https://hesperomys.com/a/35313)
  2. Corbet & Hill (1980:142) (information at https://hesperomys.com/a/63069)
  3. Honacki, Kinman & Koeppl (1982:390) (information at https://hesperomys.com/a/63071)
  4. Helgen (2005) (information at https://hesperomys.com/a/9678)
  5. O'Brien, Menninger & Nash (2006:183) (information at https://hesperomys.com/a/7321)
  6. Wilson, Lacher & Mittermeier (2016:167) (information at https://hesperomys.com/a/59599)
  7. Mammal Diversity Database (2018:ID #4003) (information at https://hesperomys.com/a/67336)
  8. Mammal Diversity Database (2019:ID #4003) (information at https://hesperomys.com/a/67337)
  9. Mammal Diversity Database (2024, https://www.mammaldiversity.org/taxon/1001957) (information at https://hesperomys.com/a/67250)
  10. Schmidly, Bradley, Yancey & Bradley (2024:31) (information at https://hesperomys.com/a/67259)
  11. International Union for the Conservation of Nature (2024, https://www.iucnredlist.org/species/4003/22187946) (information at https://hesperomys.com/a/67246)

Castor fiber, var. B, nigra

J. Richardson, 1829

Family

Castoridae

Root name

niger

Validity status

synonym

Nomenclatural status

preoccupied

Authority page

113

Authority page URI

https://www.biodiversitylibrary.org/page/27984611

Authority publication

London

Castor canadensis frontador

R. D. Fisher & Ludwig, 2012

Family

Castoridae

Root name

frontador

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

38

Authority publication

Smithsonian Contributions to Zoology

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