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 Echimyinae Gray, 1825
           Genus Echimys Cuvier, 1809 - arboreal spiny rats
             01 Echimys blainvillei (F. Cuvier, 1837) see Phyllomys blainvilii (Jourdan, 1837)
             02 Echimys braziliensis (Waterhouse, 1848)
             03 Echimys chrysurus (Zimmermann, 1780) - arboreal white-faced spiny rat
             04 Echimys dasythrix (Hensel, 1872) see Phyllomys dasythrix Hensel, 1872
             05 Echimys grandis (Wagner, 1845) see Toromys grandis (Wagner, 1845)
             06 Echimys lamarum (Thomas, 1916) see Phyllomys lamarum (Thomas, 1916)
             07 Echimys macrurus (Wagner, 1842) see Makalata macrura (Wagner, 1842)
             08 Echimys nigrispinus (Wagner, 1842) see Phyllomys nigrispinus (Wagner, 1842)
             09 Echimys pictus (Pictet, 1841)
             10 Echimys rhipidurus Thomas, 1928 see Makalata rhipidura (Thomas, 1928)
             11 Echimys saturnus Thomas, 1928
             12 Echimys semivillosus (I. Geoffroy, 1838) see Pattonomys semivillosus (I. Geoffroy, 1838)
             13 Echimys thomasi (Ihering, 1871) see Phyllomys thomasi (Ihering, 1897)
             14 Echimys unicolor (Wagner, 1842) see Phyllomys unicolor (Wagner, 1842)