Class Mammalia Linnaeus, 1758 - mammals
   Subclass Prototheria Gill, 1872 - monotremes
     Order Monotremata Bonaparte, 1837 - monotremes
       Family Tachyglossidae Gill, 1872 - spiny anteaters
         Genus Tachyglossus Illiger, 1811 - short-nosed echidna
           Tachyglossus aculeatus (Shaw, 1792) - short-beaked echidna
             1 [Tachyglossus aculeatus aculeatus]ᵀ (Shaw, 1792)
             2 Tachyglossus aculeatus acanthion (Collett, 1884)
             3 Tachyglossus aculeatus lawesii Ramsay, 1877
             4 Tachyglossus aculeatus multiaculeatus (Rothschild, 1905)
             5 Tachyglossus aculeatus setosus (Geoffroy Saint-Hilaire, 1803)