Class [Mammalia] Linnaeus, 1758 - mammals Order Rodentia Bowdich, 1821 - rodents Family Echimyidae Gray, 1825 - spiny rats Genus Proechimys Allen, 1899 - spiny rats Proechimys myosuros (Lichtenstein, 1820) see Trinomys myosuros (Lichtenstein, 1820)