Myocastor coypus

(G. I. Molina, 1782)

Coypu

Taxonomy

Subclass : Theria
Infraclass : Placentalia
Magnorder : Boreoeutheria
Superorder : Euarchontoglires
Order : Rodentia
Suborder : Hystricomorpha
Infraorder : Hystricognathi
Superfamily : Octodontoidea
Family : Echimyidae
Subfamily : Echimyinae
Tribe : Myocastorini
Genus : Myocastor

Species status

Living
Found in the wild
Listed in MSW3 2005

Authority citation

Molina, G.I. 1782. Saggio sulla storia naturale del Chili. S. Tommaso d'Aquino, Bologna, 367 pp.

Authority publication link

https://bibdigital.rjb.csic.es/idurl/1/9635

Original name as described

Mus Coypus

Other common names

Nutria

Type locality

"Chili." Restricted by C. A. Woods and colleagues in 1992 to "Rio Maipo, Santiago Province, Chile."

Biogeographic realm

Neotropic

Country distribution

Brazil · Bolivia · Paraguay · Uruguay · Argentina · Chile

Taxonomy notes

moved from Myocastoridae to Echimyidae

Taxonomy notes citation

Galewski, T., Mauffrey, J. F., Leite, Y. L., Patton, J. L., & Douzery, E. J. (2005). Ecomorphological diversification among South American spiny rats (Rodentia; Echimyidae): a phylogenetic and chronological approach. Molecular phylogenetics and evolution, 34(3), 601-615.

IUCN Red List status

Least Concern

Species Permalink

https://www.mammaldiversity.org/taxon/1001446

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.

Myocastor coypus melanops

Osgood, 1943

Family

Echimyidae

Root name

melanops

Validity status

synonym

Nomenclatural status

available

Type

FMNH:Mamm:24338

Type kind

holotype

Type specimen URI

http://portal.vertnet.org/o/fmnh/mammals?id=bdbbc401-2284-4b36-972c-3210ec3fddbc

Authority page

132

Authority page URI

https://www.biodiversitylibrary.org/page/2778142

Authority publication

Field Museum of Natural History, Zoological Series

Name usages

  1. Woods & Kilpatrick (2005) (information at https://hesperomys.com/a/8545)
  2. Wilson, Lacher & Mittermeier (2016:566) (information at https://hesperomys.com/a/59599)

Myocastor coypus santacruzae

Hollister, 1914

Family

Echimyidae

Root name

santacruzae

Validity status

synonym

Nomenclatural status

available

Type

USNM:MAMM:96513

Type kind

holotype

Type specimen URI

http://n2t.net/ark:/65665/3076b3ef8-f0ee-40d6-83cb-0e41473a00d9

Authority page

57

Authority page URI

https://www.biodiversitylibrary.org/page/55444988

Authority publication

Proceedings of the Biological Society of Washington

Name usages

Wilson, Lacher & Mittermeier (2016:566) (information at https://hesperomys.com/a/59599)

Mus Castorides

(Burrow, 1813)

Family

Echimyidae

Root name

castorides

Validity status

synonym

Nomenclatural status

available

Type kind

holotype

Authority page

168

Authority page URI

https://www.biodiversitylibrary.org/page/756719

Authority publication

Transactions of the Linnean Society of London

Mastonotus Popelairi

(Wesmael, 1841)

Family

Echimyidae

Root name

popelairi

Validity status

synonym

Nomenclatural status

available

Type kind

syntypes

Authority page

61

Authority page URI

https://www.biodiversitylibrary.org/page/15750679

Authority publication

Bulletin de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique

Name usages

Woods & Kilpatrick (2005) (information at https://hesperomys.com/a/8545)

Hydromys coypus

(G. Fischer, 1814)

Family

Echimyidae

Root name

coypus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

xx

Authority page URI

https://www.biodiversitylibrary.org/page/29130081

Authority publication

Moscow

Name usages

  1. Fischer (1814:xx, https://www.biodiversitylibrary.org/page/29130081) (information at https://hesperomys.com/a/12226)
  2. Illiger (1815:108, https://www.biodiversitylibrary.org/page/11080964) (information at https://hesperomys.com/a/38688)
  3. Schinz (1825:394, https://www.biodiversitylibrary.org/page/51523811) (information at https://hesperomys.com/a/66129)

Myocastor coypus

Lahille, 1899

Family

Echimyidae

Root name

coypus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

191

Authority page URI

https://www.biodiversitylibrary.org/page/35147057

Authority publication

Primera Reunión del Congreso Científico Latino Americano

Name usages

  1. Lahille (1899:191, https://www.biodiversitylibrary.org/page/35147057) (information at https://hesperomys.com/a/37834)
  2. Yepes (1935:249) (information at https://hesperomys.com/a/67335)
  3. Corbet & Hill (1980:192) (information at https://hesperomys.com/a/63069)
  4. Honacki, Kinman & Koeppl (1982:581) (information at https://hesperomys.com/a/63071)
  5. Woods & Kilpatrick (2005) (information at https://hesperomys.com/a/8545)
  6. O'Brien, Menninger & Nash (2006:341) (information at https://hesperomys.com/a/7321)
  7. Happold (2013:691) (information at https://hesperomys.com/a/27625)
  8. Wilson, Lacher & Mittermeier (2016:566) (information at https://hesperomys.com/a/59599)
  9. Mammal Diversity Database (2018:ID #14085) (information at https://hesperomys.com/a/67336)
  10. Mammal Diversity Database (2019:ID #14085) (information at https://hesperomys.com/a/67337)
  11. Mammal Diversity Database (2024, https://www.mammaldiversity.org/taxon/1001446) (information at https://hesperomys.com/a/67250)
  12. Schmidly, Bradley, Yancey & Bradley (2024:52) (information at https://hesperomys.com/a/67259)
  13. International Union for the Conservation of Nature (2024, https://www.iucnredlist.org/species/14085/121734257) (information at https://hesperomys.com/a/67246)

Mus Quiyá

(Larrañaga, 1923)

Family

Echimyidae

Root name

quiya

Validity status

synonym

Nomenclatural status

available

Authority page

346

Authority publication

Montevideo

Myocastor coypus bonariensis

J. Yepes, 1935

Family

Echimyidae

Root name

bonariensis

Validity status

synonym

Nomenclatural status

name_combination

Authority page

249

Authority publication

Revista del Instituto de Bacteriología

Name usages

  1. Yepes (1935:249) (information at https://hesperomys.com/a/67335)
  2. Woods & Kilpatrick (2005) (information at https://hesperomys.com/a/8545)
  3. Wilson, Lacher & Mittermeier (2016:566) (information at https://hesperomys.com/a/59599)

Myocastor coypus coypus

J. Yepes, 1935

Family

Echimyidae

Root name

coypus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

249

Authority publication

Revista del Instituto de Bacteriología

Name usages

  1. Yepes (1935:249) (information at https://hesperomys.com/a/67335)
  2. Woods & Kilpatrick (2005) (information at https://hesperomys.com/a/8545)
  3. Wilson, Lacher & Mittermeier (2016:566) (information at https://hesperomys.com/a/59599)

Myocastor coypus sanctaecruzae

J. Yepes, 1935

Family

Echimyidae

Root name

sanctaecruzae

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

249

Authority publication

Revista del Instituto de Bacteriología

Name usages

  1. Yepes (1935:249) (information at https://hesperomys.com/a/67335)
  2. Woods & Kilpatrick (2005:1593) (information at https://hesperomys.com/a/8545)

castoroides

C. A. Woods & C. W. Kilpatrick, 2005

Family

Echimyidae

Root name

castoroides

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

1593

Authority publication

Baltimore

Name usages

Woods & Kilpatrick (2005:1593) (information at https://hesperomys.com/a/8545)

Mus Coypus

(G. I. Molina, 1782)

Family

Echimyidae

Root name

coypus

Validity status

species

Nomenclatural status

available

Authority page

287

Authority publication

Bologna

Hydromys coipou

(É. Geoffroy Saint-Hilaire, 1804)

Family

Echimyidae

Root name

coipou

Validity status

synonym

Nomenclatural status

notintendedasascientific_name

Authority page

254

Authority page URI

https://www.biodiversitylibrary.org/page/5495446

Authority publication

Bulletin des Sciences, par la Société philomatique de Paris (1791-1805)

Hydromys coipus

(É. Geoffroy Saint-Hilaire, 1804)

Family

Echimyidae

Root name

coipus

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

254

Authority page URI

https://www.biodiversitylibrary.org/page/5495446

Authority publication

Bulletin des Sciences, par la Société philomatique de Paris (1791-1805)

myopotamus bonariensis

(É. Geoffroy Saint-Hilaire, 1805)

Family

Echimyidae

Root name

bonariensis

Validity status

synonym

Nomenclatural status

available

Authority page

82

Authority page URI

https://www.biodiversitylibrary.org/page/48390670

Authority publication

Annales du Muséum d'histoire naturelle

Name usages

  1. Lesson (1827:286, https://www.biodiversitylibrary.org/page/54207753) (information at https://hesperomys.com/a/36839)
  2. Lesson (1842:126) (information at https://hesperomys.com/a/36812)

hydromis coypou

(É. Geoffroy Saint-Hilaire, 1805)

Family

Echimyidae

Root name

coypou

Validity status

synonym

Nomenclatural status

notintendedasascientific_name

Authority page

86

Authority page URI

https://www.biodiversitylibrary.org/page/48390674

Authority publication

Annales du Muséum d'histoire naturelle

Hydromis coypus

(É. Geoffroy Saint-Hilaire, 1805)

Family

Echimyidae

Root name

coypus

Validity status

synonym

Nomenclatural status

name_combination

Authority page

90

Authority page URI

https://www.biodiversitylibrary.org/page/48390678

Authority publication

Annales du Muséum d'histoire naturelle

Castor chilensis

(Oken, 1816)

Family

Echimyidae

Root name

chilensis

Validity status

synonym

Nomenclatural status

inconsistently_binominal

Authority page

886

Authority page URI

https://www.biodiversitylibrary.org/page/59375633

Authority publication

Jena

Name usages

Woods & Kilpatrick (2005) (information at https://hesperomys.com/a/8545)

Myopotamus canariensis

(J. E. Gray, 1827)

Family

Echimyidae

Root name

canariensis

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

223

Authority page URI

https://www.biodiversitylibrary.org/page/34790417

Authority publication

London

Myopotamus antiquus

(P. W. Lund, 1839)

Family

Echimyidae

Root name

antiquus

Validity status

synonym

Nomenclatural status

nomen_nudum

Authority page

233

Authority page URI

https://www.biodiversitylibrary.org/page/13394383

Authority publication

Annales des sciences naturelles

Myopotamus antiquus

(Lund, 1840)

Family

Echimyidae

Root name

antiquus

Validity status

synonym

Nomenclatural status

available

Authority page

289

Authority publication

Det Kongelige danske Videnskabernes Selskabs Skrifter

Name usages

Lesson (1842:126) (information at https://hesperomys.com/a/36812)

Myopotamus Coypu albomaculatus

(Fitzinger, 1867)

Family

Echimyidae

Root name

albomaculatus

Validity status

synonym

Nomenclatural status

available

Authority page

134

Authority page URI

https://www.biodiversitylibrary.org/page/6476820

Authority publication

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften

Name usages

Woods & Kilpatrick (2005) (information at https://hesperomys.com/a/8545)

Myopotamus Coypu dorsalis

(Fitzinger, 1867)

Family

Echimyidae

Root name

dorsalis

Validity status

synonym

Nomenclatural status

available

Authority page

134

Authority page URI

https://www.biodiversitylibrary.org/page/6476820

Authority publication

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften

Name usages

Woods & Kilpatrick (2005) (information at https://hesperomys.com/a/8545)

Myopotamus Coypu rufus

(Fitzinger, 1867)

Family

Echimyidae

Root name

rufus

Validity status

synonym

Nomenclatural status

available

Authority page

134

Authority page URI

https://www.biodiversitylibrary.org/page/6476820

Authority publication

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften

Myopotamus coypu

(O. Thomas, 1881)

Family

Echimyidae

Root name

coypu

Validity status

synonym

Nomenclatural status

incorrectsubsequentspelling

Authority page

6

Authority page URI

https://www.biodiversitylibrary.org/page/30759101

Authority publication

Proceedings of the Zoological Society of London

Myocastor coypus fossilis

F. Ameghino, 1889

Family

Echimyidae

Root name

fossilis

Validity status

synonym

Nomenclatural status

nomen_novum

Authority page

133

Authority page URI

https://www.biodiversitylibrary.org/page/51769652

Authority publication

Actas de la Academia Nacional de Ciencias de la República Argentina

Matyoscor perditus

(F. Ameghino, 1902)

Family

Echimyidae

Root name

perditus

Validity status

synonym

Nomenclatural status

available

Authority page

241

Authority page URI

https://www.biodiversitylibrary.org/page/14608151

Authority publication

Anales del Museo Nacional de Buenos Aires

Myocastor coypus brasiliensis

Marelli, 1931

Family

Echimyidae

Root name

brasiliensis

Validity status

synonym

Nomenclatural status

nomen_nudum

Authority page

45

Authority publication

Memorias del Jardín Zoológico de La Plata

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