[Scala naturae Aristoteles, nom. inval.]
   ["Animalia" nom. inval.] see Kingdom Animalia nom. inval.
     ["ánhaima" Aristoteles, nom. inval. - bloodless animals]
       ["ostrakóderma" nom. inval. - testaceous mollusca]
         ["díthura" Aristoteles, nom. inval. - bivalves] see dithyra nom. inval.
           ["μῦς" nom. inval.]