Class [Mammalia] Linnaeus, 1758 - mammals Order Rodentia Bowdich, 1821 - rodents Family Hydrochaeridae (Gray, 1825) Cabrera, 1961 - capybara see Family Hydrochoeridae Gray, 1825 Genus Hydrochaerus Erxleben, 1777 see Genus Hydrochaeris Brunnich, 1772 1 Hydrochaerus hydrochaeris (C. Linnaeus, 1766) - capybara see Hydrochaeris hydrochaeris (C. Linnaeus, 1766)