Click the links to browse through the WoRMS marine species taxonomy.
Animalia
  Mollusca
  Porifera
    Calcarea
    Hexactinellida
    Homoscleromorpha
    Porifera incertae sedis
    Demospongiae
      Ceractinomorpha
      Tetractinomorpha
      Dendroceratida
      Dictyoceratida
      Halichondrida
        Axinellidae
        Bubaridae
        Desmoxyidae
        Dictyonellidae
        Halichondriidae
          Amorphina
          Amorphinopsis
          Anisoxya
          Axinyssa
          Ciocalapata
          Ciocalypta
          Coelocalypta
          Eumastia
          Halichondria
            Halichondria abyssi
            Halichondria aculeata
            Halichondria agglomerans
            Halichondria albescens
            Halichondria albula
            Halichondria angulata
            Halichondria anhelans
            Halichondria arenosa
            Halichondria aspera
            Halichondria aurantiaca
            Halichondria axinelloides
            Halichondria bowerbanki
            Halichondria brunnea
            Halichondria carnosus
            Halichondria colossea
            Halichondria contorta
            Halichondria convolvens
            Halichondria coralloides
            Halichondria cornuloides
            Halichondria difficilis
            Halichondria diversispiculata
            Halichondria dubia
            Halichondria falcula
            Halichondria fibrosa
            Halichondria foraminosa
            Halichondria forcipis
            Halichondria glabra
            Halichondria grisea
            Halichondria heterorrhaphis
            Halichondria hirsuta
            Halichondria hystrix
            Halichondria incrustans
            Halichondria inornata
            Halichondria johnstonia
            Halichondria labiata
            Halichondria lactea
            Halichondria lambei
            Halichondria leuconoides
            Halichondria longispicula
            Halichondria luxurians
            Halichondria maculans
            Halichondria membrana
            Halichondria nigricans
            Halichondria nodosa
            Halichondria normani
            Halichondria oblonga
            Halichondria osculum
            Halichondria pachastrelloides
            Halichondria paciscens
            Halichondria panicea
            Halichondria phlyctenodes
            Halichondria renieroides
            Halichondria rosacea
            Halichondria scandens
            Halichondria semitubulosa
            Halichondria simulans
            Halichondria tenera
            Halichondria tenuiderma
            Halichondria tenuispiculata
            Halichondria topsenti
            Halichondria velamentosa
            Halichondria virgultosa
            Halichondria sitiens
            Halichondria genetrix
            Halichondria coalita
            Halichondria fastigiata
            Halichondria (Eumastia)
            Halichondria (Halichondria)
                Halichondria (Halichondria) adelpha
                Halichondria (Halichondria) agglomerans
                Halichondria (Halichondria) aldabrensis
                Halichondria (Halichondria) almae
                Halichondria (Halichondria) arenacea
                Halichondria (Halichondria) arenosa
                Halichondria (Halichondria) armata
                Halichondria (Halichondria) aspera
                Halichondria (Halichondria) axinelloides
                Halichondria (Halichondria) bergquistae
                Halichondria (Halichondria) bowerbanki
                Halichondria (Halichondria) brunnea
                Halichondria (Halichondria) cancellosa
                Halichondria (Halichondria) cartilaginea
                Halichondria (Halichondria) cebimarensis
                Halichondria (Halichondria) coerulea
                Halichondria (Halichondria) colossea
                Halichondria (Halichondria) contorta
                Halichondria (Halichondria) convolvens
                Halichondria (Halichondria) cornuloides
                Halichondria (Halichondria) corrugata
                Halichondria (Halichondria) cristata
                Halichondria (Halichondria) cylindrata
                Halichondria (Halichondria) darwinensis
                Halichondria (Halichondria) diversispiculata
                Halichondria (Halichondria) dubia
                Halichondria (Halichondria) fallax
                Halichondria (Halichondria) flexuosa
                Halichondria (Halichondria) foetida
                Halichondria (Halichondria) foraminosa
                Halichondria (Halichondria) fragilis
                Halichondria (Halichondria) genitrix
                Halichondria (Halichondria) glabrata
                Halichondria (Halichondria) granulata
                Halichondria (Halichondria) heterorrhaphis
                Halichondria (Halichondria) incrustans
                Halichondria (Halichondria) intermedia
                Halichondria (Halichondria) isthmica
                Halichondria (Halichondria) japonica
                Halichondria (Halichondria) knowltoni
                Halichondria (Halichondria) labiata
                Halichondria (Halichondria) lambei
                Halichondria (Halichondria) lendenfeldi
                Halichondria (Halichondria) leuconoides
                Halichondria (Halichondria) longispicula
                Halichondria (Halichondria) lutea
                Halichondria (Halichondria) magniconulosa
                Halichondria (Halichondria) melanadocia
                Halichondria (Halichondria) membranacea
                Halichondria (Halichondria) migottea
                Halichondria (Halichondria) minuta
                Halichondria (Halichondria) modesta
                Halichondria (Halichondria) mollissima
                Halichondria (Halichondria) moorei
                Halichondria (Halichondria) nigrocutis
                Halichondria (Halichondria) normani
                Halichondria (Halichondria) oblonga
                Halichondria (Halichondria) okadai
                Halichondria (Halichondria) osculum
                Halichondria (Halichondria) oshoro
                Halichondria (Halichondria) oxiparva
                Halichondria (Halichondria) panicea
                Halichondria (Halichondria) papillaris
                Halichondria (Halichondria) pelliculata
                Halichondria (Halichondria) phakellioides
                Halichondria (Halichondria) poa
                Halichondria (Halichondria) pontica
                Halichondria (Halichondria) prostrata
                Halichondria (Halichondria) renieroides
                Halichondria (Halichondria) ridleyi
                Halichondria (Halichondria) solidior
                Halichondria (Halichondria) stalagmites
                Halichondria (Halichondria) stylata
                Halichondria (Halichondria) suberosa
                Halichondria (Halichondria) sulfurea
                Halichondria (Halichondria) surrubicunda
                Halichondria (Halichondria) syringea
                Halichondria (Halichondria) tenebrica
                Halichondria (Halichondria) tenera
                Halichondria (Halichondria) tenuiramosa
                Halichondria (Halichondria) tenuispiculata
                Halichondria (Halichondria) turritella
                Halichondria (Halichondria) vansoesti
                Halichondria (Halichondria) variabilis
                Halichondria (Halichondria) velamentosa
                Halichondria (Halichondria) hentscheli
                Halichondria (Halichondria) incrustans
                Halichondria (Halichondria) semitubulosa
                Halichondria (Halichondria) capensis
                Halichondria (Halichondria) gilvus
                Halichondria (Halichondria) gageoenesis
                Halichondria (Halichondria) muanensis
                Halichondria (Halichondria) punctata
            Halichondria thompsoni
            Halichondria hyndmani
            Halichondria pattersoni
            Halichondria subdola
            Halichondria birotulata
            Halichondria purpurea
            Halichondria aegagropila
            Halichondria infrequens
            Halichondria isodictyalis
            Halichondria mammillata
            Halichondria pustulosa
            Halichondria rigida
            Halichondria retiderma
            Halichondria tuberculatum
            Halichondria crassa
            Halichondria cylindracea
            Halichondria latrunculioides
            Halichondria ficus
            Halichondria farinaria
            Halichondria flavus
            Halichondria aspera
            Halichondria stelliderma
            Halichondria intricata
            Halichondria nigra
            Halichondria ruetzleri
            Halichondria disparilis
            Halichondria dura
            Halichondria rugosa
            Halichondria solida
            Halichondria braziliensis
            Halichondria corrugata
            Halichondria clathriformis
            Halichondria digitata
            Halichondria elegantia
            Halichondria inconspicua
            Halichondria varia
            Halichondria cervicornis
            Halichondria condensa
            Halichondria mcintoshii
            Halichondria montaguii
            Halichondria couchii
            Halichondria bulbosa
            Halichondria rubra
            Halichondria sevosa
            Halichondria adelpha
            Halichondria albescens
            Halichondria aldabrensis
            Halichondria ambigua
            Halichondria arenacea
            Halichondria armata
            Halichondria bergquistae
            Halichondria brettii
            Halichondria bubastes
            Halichondria caduca
            Halichondria coccinea
            Halichondria coerulea
            Halichondria cebimarensis
            Halichondria corrugata
            Halichondria cristata
            Halichondria cylindrata
            Halichondria darwinensis
            Halichondria edusa
            Halichondria fragilis
            Halichondria glabrata
            Halichondria granulata
            Halichondria hentscheli
            Halichondria incerta
            Halichondria incrustans
            Halichondria incrustans
            Halichondria intermedia
            Halichondria knowltoni
            Halichondria lendenfeldi
            Halichondria lutea
            Halichondria magniconulosa
            Halichondria melanadocia
            Halichondria migottea
            Halichondria minuta
            Halichondria moorei
            Halichondria oshoro
            Halichondria pannosus
            Halichondria pelliculata
            Halichondria phakellioides
            Halichondria prostrata
            Halichondria reticulata
            Halichondria reticulata
            Halichondria reticulata
            Halichondria ridleyi
            Halichondria stylata
            Halichondria sulfurea
            Halichondria surrubicunda
            Halichondria symbiotica
            Halichondria syringea
            Halichondria tenebrica
            Halichondria tenuiramosa
            Halichondria vansoesti
            Halichondria variabilis
            Halichondria attenuata
            Halichondria inops
            Halichondria aplysinoides
            Halichondria cavernosa
            Halichondria distorta
            Halichondria papillata
            Halichondria compressa
            Halichondria aceratospiculum
            Halichondria compressa
            Halichondria scabida
            Halichondria corona
            Halichondria mutula
            Halichondria frondifera
            Halichondria borealis
            Halichondria simplex
            Halichondria ingalli
            Halichondria seriata
            Halichondria infundibuliformis
            Halichondria variantia
            Halichondria fasciculata
            Halichondria celata
            Halichondria papillaris
            Halichondria oculata
            Halichondria cinerea
            Halichondria fucorum
            Halichondria parasitica
            Halichondria palmata
            Halichondria plumosa
            Halichondria suberica
            Halichondria suberea
            Halichondria suberia
            Halichondria firmus
            Halichondria granulata
            Halichondria baeri
            Halichondria gageoenesis
            Halichondria muanensis
            Halichondria capensis
            Halichondria gilvus
            Halichondria genitrix
            Halichondria punctata
            Halichondria hirta
            Halichondria macularis
            Halichondria aspera
            Halichondria tyleri
            Halichondria japonica
            Halichondria claviformis
            Halichondria candida
            Halichondria ventilabrum
            Halichondria variabilis
            Halichondria aspera
            Halichondria bibula
            Halichondria assimilis
            Halichondria topsenti
            Halichondria foliata
            Halichondria flava
            Halichondria contarenii
          Hymeniacidon
          Laminospongia
          Leucophloeus
          Oxeostilon
          Pellina
          Pseudaxinyssa
          Rhaphidostyla
          Spongosorites
          Stylinos
          Stylotella
          Topsentia
          Vosmaeria
          Cryptax
          Epipolasis
          Thieleia
          Nailondria
          Prostylissa
          Amorphilla
          Apatospongia
          Aponastra
          Astromimus
          Axinomimus
          Cioxeamastia
          Collocalypta
          Halichondriella
          Menanetia
          Oxeosarcodea
          Raspaigella
          Spuma
          Stylohalina
          Tedanione
          Trachyopsilla
          Trachyopsis
          Uritaia
          Viles
          Halina
          Pseudohymeniacidon
          Rhaphoxiella
          Seriatula
          Tumata
          Callites
          Apathospongia
          Johannesia
          Sarcomella
        Hymeniacidonidae
        Heteroxyidae
        Phakellidae
        Scopalinidae
      Halisarcida
      Haplosclerida
      Poecilosclerida
      Verongida
      Astrophorida
      Chondrosida
      Hadromerida
      'Lithistida'
      Spirophorida
      Petrosida
      Nepheliospongida
      Choristida
      Axinellida
      Agelasida
      Demospongiae incertae sedis
      Verticillitida
      Keratosa
      Myxospongiae
      Gummineae
      Verongimorpha
      Tetractinellida
      Democlavia
    Sclerospongiae
    Hyalospongiae
    Calcispongiae
  Platyhelminthes
  Nematoda
  Annelida
  Nemertina
  Arthropoda
  Ctenophora
  Cnidaria
  Sipuncula
  Echiura
  Pogonophora
  Entoprocta
  Tardigrada
  Phoronida
  Brachiopoda
  Echinodermata
  Hemichordata
  Chordata
  Gastrotricha
  Chaetognatha
  Ectoprocta
  Mesozoa
  Rotifera
  Gnathostomulida
  Acanthocephala
  Cycliophora
  Cephalorhyncha
  Placozoa
  Bryozoa
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  Sipunculida
  Pentastomida
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Plantae
Fungi
Protozoa
Bacteria
Chromista
Archaea
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Monera