Central Taxonomic Thesaurus
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  Animalia
      Annelida
            Polychaeta
                   [Lysareunicidae]
              Palpata
                    Canalipalpata
                      Spionida
                            Chaetopteridae
                                     Chaetopterus
                                             Chaetopterus norvegicus
                                             Chaetopterus sarsi
                                             Chaetopterus variopedatus
                                                   [Chaetopterus pergamentaceus]
                                                   [Tricoelia variopedatus]
                                     Mesochaetopterus
                                             Mesochaetopterus capensis
                                             Mesochaetopterus reckettsii
                                             Mesochaetopterus sagittarius
                                             Mesochaetopterus taylori
                                     Phyllochaetopterus
                                             Phyllochaetopterus anglicus
                                             Phyllochaetopterus claparedii
                                             Phyllochaetopterus gracilis
                                             Phyllochaetopterus limicolus
                                             Phyllochaetopterus prolifica
                                             Phyllochaetopterus socialis
                                             Phyllochaetopterus verrilli
                                     Spiochaetopterus
                                             Spiochaetopterus bergensis
                                             Spiochaetopterus costarum
                                               Spiochaetopterus costarum costarum
                                               Spiochaetopterus costarum oculatus
                                             Spiochaetopterus oculatus
                                             Spiochaetopterus typicus