Phylum Tardigrada Doyère, 1840 - tardigrades
   Class Heterotardigrada Marcus, 1927 - armored tardigrades
     Order Echiniscoidea Richters, 1926
       Family Echiniscidae Thulin, 1928
         Genus Echiniscus C.A.S. Schultze, 1840
           01 Echiniscus baius Marcus
           02 Echiniscus blumi Richters, 1903
           03 Echiniscus canadensis J. Murray, 1910
           04 Echiniscus granulatus (Doyère, 1840)
           05 Echiniscus merokensis Richters, 1904
           06 Echiniscus reticulatus Murray
           07 Echiniscus simba Marcus, 1928
           08 Echiniscus testudo (Doyère, 1840)
           09 Echiniscus trisetosus Cuénot, 1932
           10 Echiniscus wendti Richters, 1903