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• Domain: Eukaryota () - Whittaker & Margulis,1978
  • Kingdom: Animalia () - Linnaeus, 1758 - animals
    • Subkingdom: Bilateria () - (Hatschek, 1888) Cavalier-Smith, 1983
      • Branch: Protostomia () - Grobben, 1908
        • Infrakingdom: Lophotrochozoa ()
          • Superphylum: Eutrochozoa ()
            • Phylum: Annelida () - Lamarck, 1809 - Segmented Worms
              • Superclass: Clitellata ()
                • Class: Oligochaeta () - Oligochaetes
                  • Subclass: Diplotesticulata ()
                    • Cohort: Terrimegadrili ()
                      • Order: Haplotaxida ()
                        • Suborder: Lumbricina ()
                          • Superfamily: Megascolecoidea ()
                            • Family: Megascolecidae () - Rosa, 1891
                              • Genus: Yagansia () - Michaelsen, 1899
                                • Specific name: spatulifera - (Michaelsen 1889)
                                  • Scientific name: - Yagansia spatulifera (Michaelsen 1889)