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  Animalia
      Annelida
            Polychaeta
                   [Lysareunicidae]
              Palpata
                    Canalipalpata
                      Sabellida
                            Serpulidae
                                     Amplaria
                                             Amplaria spiculosa
                                     Anomalorbis
                                             Anomalorbis manuatus
                                     Apomatus
                                             Apomatus globifer
                                             Apomatus similis
                                             Apomatus timsii
                                     Bushiella
                                             Bushiella evolutus
                                                   [Spirorbis evolutus]
                                     Capeospira
                                             Capeospira adeonella
                                                   [Spirorbis adeonella]
                                     Chitinopoma
                                             Chitinopoma groenlandica
                                                   [Chitinopoma norvegica groenlandica]
                                                   [Hydroides norvegica groenlandica]
                                             Chitinopoma occidentalis
                                             Chitinopoma serrula
                                     Circeis
                                             Circeis armoricana
                                               Circeis armoricana armoricana
                                               Circeis armoricana fragilis
                                               Circeis armoricana paguri
                                             Circeis spirillum
                                                   [Serpula spirillum]
                                     Crucigera
                                             Crucigera irregularis
                                             Crucigera websteri
                                             Crucigera zygophora
                                     Dexiospira
                                             Dexiospira corrugata
                                                   [Serpula corrugata]
                                             Dexiospira rugatus
                                             Dexiospira semidentata
                                             Dexiospira spirillum
                                                   [Spirorbis spirillum]
                                     Dextralia
                                             Dextralia falklandica
                                                   [Spirorbis falklandica]
                                     Ditrupa
                                             Ditrupa arietina
                                     Eulaeospira
                                             Eulaeospira orientalis
                                     Ficopomatus
                                           [Mercierella]
                                           [Sphaeropomatus]
                                             Ficopomatus enigmaticus
                                                   [Mercierella enigmatica]
                                             Ficopomatus macrodon
                                             Ficopomatus miamiensis
                                                   [Sphaeropomatus miamiensis]
                                     Filograna
                                             Filograna implexa
                                     Filogranella
                                             Filogranella elatensis
                                     Filogranula
                                             Filogranula calyculata
                                             Filogranula implexa
                                     Hyalopomatus
                                             Hyalopomatus biformis
                                     Hydroides
                                             Hydroides bispinosa
                                             Hydroides brachyacantha
                                             Hydroides crucigera
                                             Hydroides dianthus
                                             Hydroides dirampha
                                             Hydroides elegans
                                             Hydroides ezoensis
                                             Hydroides hexagonus
                                             Hydroides lunulifera
                                             Hydroides microtis
                                             Hydroides norvegica
                                             Hydroides parvus
                                             Hydroides protulicola
                                             Hydroides sanctaecrucis
                                             Hydroides uncinata
                                     Janua
                                             Janua alveolatus
                                                   [Spirorbis alveolatus]
                                             Janua anticorrugata
                                             Janua antillarum
                                             Janua argutus
                                                   [Spirorbis argutus]
                                             Janua brasiliensis
                                                   [Janua bellulus]
                                                   [Spirorbis bellulus]
                                             Janua ceylonicus
                                                   [Spirorbis ceylonicus]
                                             Janua corrugatus
                                                   [Spirorbis corrugatus]
                                             Janua epichysis
                                                   [Spirorbis epichysis]
                                             Janua foraminosa
                                                   [Spirorbis heideri]
                                             Janua karaitivensis
                                                   [Spirorbis karaitivensis]
                                             Janua kayi
                                             Janua knightjonesi
                                                   [Leodora knightjonesi]
                                             Janua lamellosa
                                                   [Dexiospira lamellosa]
                                             Janua natalensis
                                             Janua nipponica
                                                   [Dexiospira nipponica]
                                             Janua oshoroensis
                                                   [Desiospira oshoroensis]
                                             Janua pagenstecheri
                                                   [Janua pusilloides]
                                                   [Janua unicornis]
                                                   [Spirorbis pagenstecheri]
                                                   [Spirorbis pusilloides]
                                                   [Spirorbis unicornis]
                                               Janua pagenstecheri gnomenicus
                                               Janua pagenstecheri pagenstecheri
                                             Janua preacuta
                                                   [Janua turrita]
                                             Janua pseudocorrugata
                                                   [Dexiospira ainu]
                                                   [Janua ainu]
                                                   [Janua pseudocorrugata ainu]
                                               Janua pseudocorrugata mannarensis
                                                     [Janua benhami]
                                                     [Neodexiospira behami]
                                                     [Neodexiospira mannarensis]
                                               Janua pseudocorrugata pseudocorrugata
                                             Janua steueri
                                                   [Dexiospira steueri]
                                                   [Janua treadwelli]
                                                   [Spirorbis treadwelli]
                                             Janua tambalagamensis
                                                   [Dexiospira tambalagamensis]
                                             Janua trifurcata
                                     Josephella
                                             Josephella marenzelleri
                                     Leodora
                                             Leodora abnormis
                                             Leodora valida
                                     Metavermilia
                                             Metavermilia multicristata
                                                   [Vermiliopsis multicristata]
                                     Neodexiospira
                                             Neodexiospira foraminosa
                                             Neodexiospira nipponica
                                             Neodexiospira preacuta
                                     Neovermilia
                                             Neovermilia capensis
                                     Nidificaria
                                             Nidificaria dalestraughanae
                                     Paradexiospira
                                             Paradexiospira violaceus
                                             Paradexiospira vitrea
                                                   [Serpula vitrea]
                                     Paralaeospira
                                             Paralaeospira aggregata
                                                   [Spirorbis aggregata]
                                             Paralaeospira malardi
                                     Pileolaria
                                             Pileolaria berkeleyana
                                             Pileolaria heteropoma
                                             Pileolaria militaris
                                             Pileolaria pseudoclavis
                                     Placostegus
                                             Placostegus tridentatus
                                     Pomatoceros
                                             Pomatoceros americanus
                                             Pomatoceros caeruleus
                                             Pomatoceros lamarcki
                                             Pomatoceros triqueter
                                                   [Serpula triquetra]
                                     Pomatoleios
                                             Pomatoleios caerulescens
                                             Pomatoleios kraussii
                                     Pomatostegus
                                             Pomatostegus macrosoma
                                     Protolaeospira
                                             Protolaeospira ambilateralis
                                             Protolaeospira capensis
                                             Protolaeospira striata
                                     Protula
                                             Protula atypha
                                             Protula intestinum
                                             Protula superba
                                             Protula tubularia
                                     Pseudochitinopoma
                                             Pseudochitinopoma occidentalis
                                     Pseudovermilia
                                             Pseudovermilia conchata
                                             Pseudovermilia holcopleura
                                             Pseudovermilia occidentalis
                                     Salmacina
                                             Salmacina dysteri
                                             Salmacina tribranchiata
                                     Semivermilia
                                             Semivermilia pomatostegoides
                                     Serpula
                                             Serpula vermicularis
                                               Serpula vermicularis granulosa
                                                     [Serpula granulosa]
                                               Serpula vermicularis vermicularis
                                     Simplicaria
                                             Simplicaria pseudomilitaris
                                     Spirobranchus
                                             Spirobranchus giganteus
                                               Spirobranchus gigantea corniculatus
                                               Spirobranchus gigantea gigantea
                                             Spirobranchus latiscapus
                                     Spirorbis
                                             Spirorbis borealis
                                             Spirorbis corallinae
                                             Spirorbis cuneatus
                                             Spirorbis granulatus
                                             Spirorbis incongruus
                                             Spirorbis inornatus
                                             Spirorbis knightjonesi
                                             Spirorbis lineatus
                                             Spirorbis marioni
                                             Spirorbis medius
                                                   [Laeospira medius]
                                             Spirorbis moerchi
                                             Spirorbis nakamurai
                                             Spirorbis quadrangularis
                                             Spirorbis quasimilitaris
                                             Spirorbis rupestris
                                             Spirorbis semidentatus
                                             Spirorbis similis
                                             Spirorbis spirorbis
                                             Spirorbis steueri
                                             Spirorbis tridentata
                                             Spirorbis variabilis
                                             Spirorbis violaceus
                                     Vermiliopsis
                                             Vermiliopsis annulata
                                             Vermiliopsis babylonia
                                             Vermiliopsis bermudensis
                                             Vermiliopsis biformis
                                             Vermiliopsis infundibulum
                                                   [Serpula infundibulum]
                                             Vermiliopsis multiannulata
                                             Vermiliopsis striaticeps
                                             Vermiliopsis torquata
                                     Vinearia
                                             Vinearia koehleri