[Scala naturae Aristoteles, nom. inval.]
   ["Animalia" nom. inval.] see Kingdom Animalia nom. inval.
     ["ánhaima" Aristoteles, nom. inval. - bloodless animals]
       ["malakóstraka" Aristoteles, nom. inval. - crustaceans] see Class Malacostraca Latreille, 1802
         ["karkinion" Aristoteles, nom. inval. - hermit crab] see Family Paguridae Latreille, 1802