Class Mammalia Linnaeus, 1758 - mammals Order Rodentia Bowdich, 1821 - rodents Suborder Hystricognathi Tullberg, 1899 see Infraorder Hystricognathi Tullberg, 1899 Family Echimyidae Gray, 1825 - spiny rats Subfamily Eumysopinae Rusconi, 1935 see Subfamily Heteropsomyinae Anthony, 1917 Genus Carterodon Waterhouse, 1848 1 Carterodon sulcidens (Lund, 1841)