CoypuMyocastor coypusCoypu (Myocastor coypus) is a species in the genus Myocastor, family Echimyidae, order Rodentia.Scientific classificationRankTaxonDomainEukaryotaKingdomAnimaliaPhylumChordataClassMammaliaOrderRodentiaFamilyEchimyidaeGenusMyocastorSpeciesMyocastor coypus