Class [Mammalia] Linnaeus, 1758 - mammals Order Rodentia Bowdich, 1821 - rodents Family Echimyidae Gray, 1825 - spiny rats Genus Echimys Cuvier, 1809 - arboreal spiny rats Echimys nigrispinus (Wagner, 1842) see Phyllomys nigrispinus (Wagner, 1842)