Class Mammalia Linnaeus, 1758 - mammals Order Rodentia Bowdich, 1821 - rodents Suborder Hystricognathi Tullberg, 1899 see Infraorder Hystricognathi Tullberg, 1899 Family Caviidae Fischer de Waldheim, 1817 - cavies and Patagonian "hares" Subfamily Caviinae Fischer de Waldheim, 1817 Genus Galea Meyen, 1833, nom. illeg. - yellow-toothed cavies Galea spixii (Wagler, 1831)