'little beaver', by which its fur is known in Italy. In Swedish, the animal is known as sumpbäver 'marsh/swamp-beaver'. In Brazil, the animal is known as ratão-do-banhado 'big swamp-rat', nútria, or caxingui (the last from Tupi).

Taxonomy

The nutria was first described by Juan Ignacio Molina in 1782 as Mus coypus, a member of the mouse genus. The genus Myocastor was assigned in

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