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
      Halisarcida
      Haplosclerida
      Poecilosclerida
        Microcionina
        Mycalina
        Myxillina
          Coelosphaeridae
          Crambeidae
          Crellidae
          Dendoricellidae
          Desmacididae
          Hymedesmiidae
            Leptosia
            Acanthancora
            Anchinoe
            Hamigera
            Hemimycale
            Hymedesmia
              Hymedesmia inflata
              Hymedesmia (Hymedesmia)
                  Hymedesmia (Hymedesmia) baculifera
                  Hymedesmia (Hymedesmia) basispinosa
                  Hymedesmia (Hymedesmia) bocki
                  Hymedesmia (Hymedesmia) bowerbanki
                  Hymedesmia (Hymedesmia) bractea
                  Hymedesmia (Hymedesmia) castanea
                  Hymedesmia (Hymedesmia) chlorosa
                  Hymedesmia (Hymedesmia) clavigera
                  Hymedesmia (Hymedesmia) consanguinea
                  Hymedesmia (Hymedesmia) cordichela
                  Hymedesmia (Hymedesmia) crux
                  Hymedesmia (Hymedesmia) curvichela
                  Hymedesmia (Hymedesmia) depressa
                  Hymedesmia (Hymedesmia) digitata
                  Hymedesmia (Hymedesmia) donsi
                  Hymedesmia (Hymedesmia) dubia
                  Hymedesmia (Hymedesmia) ebria
                  Hymedesmia (Hymedesmia) filifera
                  Hymedesmia (Hymedesmia) flaccida
                  Hymedesmia (Hymedesmia) gisleni
                  Hymedesmia (Hymedesmia) gracilisigma
                  Hymedesmia (Hymedesmia) grandis
                  Hymedesmia (Hymedesmia) gunhildae
                  Hymedesmia (Hymedesmia) gustafsoni
                  Hymedesmia (Hymedesmia) hallmanni
                  Hymedesmia (Hymedesmia) helgae
                  Hymedesmia (Hymedesmia) inflata
                  Hymedesmia (Hymedesmia) inflata
                  Hymedesmia (Hymedesmia) irregularis
                  Hymedesmia (Hymedesmia) jecusculum
                  Hymedesmia (Hymedesmia) jugalis
                  Hymedesmia (Hymedesmia) koehleri
                  Hymedesmia (Hymedesmia) lacera
                  Hymedesmia (Hymedesmia) lamina
                  Hymedesmia (Hymedesmia) latrunculioides
                  Hymedesmia (Hymedesmia) lenta
                  Hymedesmia (Hymedesmia) levis
                  Hymedesmia (Hymedesmia) lobichela
                  Hymedesmia (Hymedesmia) longistylus
                  Hymedesmia (Hymedesmia) macrosigma
                  Hymedesmia (Hymedesmia) mamillaris
                  Hymedesmia (Hymedesmia) manubriata
                  Hymedesmia (Hymedesmia) matthesi
                  Hymedesmia (Hymedesmia) mertoni
                  Hymedesmia (Hymedesmia) microchela
                  Hymedesmia (Hymedesmia) minuta
                  Hymedesmia (Hymedesmia) mollis
                  Hymedesmia (Hymedesmia) mucronata
                  Hymedesmia (Hymedesmia) mutabilis
                  Hymedesmia (Hymedesmia) norvegica
                  Hymedesmia (Hymedesmia) nummulus
                  Hymedesmia (Hymedesmia) occulta
                  Hymedesmia (Hymedesmia) omissa
                  Hymedesmia (Hymedesmia) oxneri
                  Hymedesmia (Hymedesmia) pachychela
                  Hymedesmia (Hymedesmia) palmatichela
                  Hymedesmia (Hymedesmia) pansa
                  Hymedesmia (Hymedesmia) paupertas
                  Hymedesmia (Hymedesmia) peachi
                  Hymedesmia (Hymedesmia) pennata
                  Hymedesmia (Hymedesmia) perforata
                  Hymedesmia (Hymedesmia) pilata
                  Hymedesmia (Hymedesmia) planca
                  Hymedesmia (Hymedesmia) planisigma
                  Hymedesmia (Hymedesmia) plicata
                  Hymedesmia (Hymedesmia) poicilacantha
                  Hymedesmia (Hymedesmia) procumbens
                  Hymedesmia (Hymedesmia) proteida
                  Hymedesmia (Hymedesmia) proxima
                  Hymedesmia (Hymedesmia) pugio
                  Hymedesmia (Hymedesmia) rhaphigena
                  Hymedesmia (Hymedesmia) rissoi
                  Hymedesmia (Hymedesmia) rugosa
                  Hymedesmia (Hymedesmia) senegalensis
                  Hymedesmia (Hymedesmia) serrulata
                  Hymedesmia (Hymedesmia) similis
                  Hymedesmia (Hymedesmia) simillima
                  Hymedesmia (Hymedesmia) sirventi
                  Hymedesmia (Hymedesmia) spinosa
                  Hymedesmia (Hymedesmia) splenium
                  Hymedesmia (Hymedesmia) stephensi
                  Hymedesmia (Hymedesmia) storea
                  Hymedesmia (Hymedesmia) stylata
                  Hymedesmia (Hymedesmia) tenuicula
                  Hymedesmia (Hymedesmia) tenuisclera
                  Hymedesmia (Hymedesmia) tenuisigma
                  Hymedesmia (Hymedesmia) thielei
                  Hymedesmia (Hymedesmia) trichoma
                  Hymedesmia (Hymedesmia) truncata
                  Hymedesmia (Hymedesmia) umbellifera
                  Hymedesmia (Hymedesmia) veneta
                  Hymedesmia (Hymedesmia) verrucosa
                  Hymedesmia (Hymedesmia) versicolor
                  Hymedesmia (Hymedesmia) vidua
                  Hymedesmia (Hymedesmia) vomerula
                  Hymedesmia (Hymedesmia) zetlandica
                  Hymedesmia (Hymedesmia) agariciicola
                  Hymedesmia (Hymedesmia) anisostrongyloxea
                  Hymedesmia (Hymedesmia) armigera
                  Hymedesmia (Hymedesmia) atlantica
                  Hymedesmia (Hymedesmia) aurantiaca
                  Hymedesmia (Hymedesmia) basiclavata
                  Hymedesmia (Hymedesmia) brachyrhabda
                  Hymedesmia (Hymedesmia) campechiana
                  Hymedesmia (Hymedesmia) canadensis
                  Hymedesmia (Hymedesmia) caribica
                  Hymedesmia (Hymedesmia) crelloides
                  Hymedesmia (Hymedesmia) curacaoensis
                  Hymedesmia (Hymedesmia) decepta
                  Hymedesmia (Hymedesmia) dichela
                  Hymedesmia (Hymedesmia) filans
                  Hymedesmia (Hymedesmia) gregalis
                  Hymedesmia (Hymedesmia) irritans
                  Hymedesmia (Hymedesmia) jamaicensis
                  Hymedesmia (Hymedesmia) laevis
                  Hymedesmia (Hymedesmia) lancifera
                  Hymedesmia (Hymedesmia) lundbecki
                  Hymedesmia (Hymedesmia) mannarensis
                  Hymedesmia (Hymedesmia) mariondufresni
                  Hymedesmia (Hymedesmia) microstrongyla
                  Hymedesmia (Hymedesmia) murrayi
                  Hymedesmia (Hymedesmia) nummota
                  Hymedesmia (Hymedesmia) orientalis
                  Hymedesmia (Hymedesmia) palmatichelifera
                  Hymedesmia (Hymedesmia) parva
                  Hymedesmia (Hymedesmia) prostrata
                  Hymedesmia (Hymedesmia) saccea
                  Hymedesmia (Hymedesmia) similima
                  Hymedesmia (Hymedesmia) spiniarcuata
                  Hymedesmia (Hymedesmia) stylophora
                  Hymedesmia (Hymedesmia) tenuissima
                  Hymedesmia (Hymedesmia) uchinourensis
                  Hymedesmia (Hymedesmia) velata
                  Hymedesmia (Hymedesmia) gaussiana
                  Hymedesmia (Hymedesmia) unguifera
                  Hymedesmia (Hymedesmia) antarctica
                  Hymedesmia (Hymedesmia) leptochela
                  Hymedesmia (Hymedesmia) pustula
                  Hymedesmia (Hymedesmia) laevistylus
                  Hymedesmia (Hymedesmia) rectirhaphis
                  Hymedesmia (Hymedesmia) bonairensis
                  Hymedesmia (Hymedesmia) cohesibacilla
                  Hymedesmia (Hymedesmia) cratera
                  Hymedesmia (Hymedesmia) rathlinia
                  Hymedesmia (Hymedesmia) stellifera
                  Hymedesmia (Hymedesmia) platychela
                  Hymedesmia (Hymedesmia) umbelliformis
                  Hymedesmia (Hymedesmia) stoneae
                  Hymedesmia (Hymedesmia) tendali
                  Hymedesmia (Hymedesmia) xavierae
                  Hymedesmia (Hymedesmia) gibbosa
                  Hymedesmia (Hymedesmia) valentinae
              Hymedesmia (Stylopus)
              Hymedesmia aenigma
              Hymedesmia (Holorodesmia)
              Hymedesmia rhodus
              Hymedesmia flaccida
              Hymedesmia laevissima
              Hymedesmia simplicima
              Hymedesmia indistincta
              Hymedesmia arborescens
              Hymedesmia areolata
              Hymedesmia leptochela
              Hymedesmia lieberkuehni
              Hymedesmia capitatostellifera
              Hymedesmia chondrilloides
              Hymedesmia crassa
              Hymedesmia curvistellifera
              Hymedesmia mixta
              Hymedesmia spinatostellifera
              Hymedesmia stellata
              Hymedesmia stellivarians
              Hymedesmia tristellata
              Hymedesmia unistellata
              Hymedesmia moorei
              Hymedesmia aequata
              Hymedesmia agariciicola
              Hymedesmia anisostrongyloxea
              Hymedesmia antarctica
              Hymedesmia atlantica
              Hymedesmia aurantiaca
              Hymedesmia basiclavata
              Hymedesmia basispinosa
              Hymedesmia bocki
              Hymedesmia bowerbanki
              Hymedesmia brachyrhabda
              Hymedesmia bractea
              Hymedesmia campechiana
              Hymedesmia canadensis
              Hymedesmia caribica
              Hymedesmia castanea
              Hymedesmia chlorosa
              Hymedesmia consanguinea
              Hymedesmia cordichela
              Hymedesmia crelloides
              Hymedesmia curacaoensis
              Hymedesmia curvichela
              Hymedesmia depressa
              Hymedesmia digitata
              Hymedesmia donsi
              Hymedesmia dubia
              Hymedesmia ebria
              Hymedesmia filifera
              Hymedesmia gaussiana
              Hymedesmia gisleni
              Hymedesmia gracilisigma
              Hymedesmia grandis
              Hymedesmia gregalis
              Hymedesmia gunhildae
              Hymedesmia gustafsoni
              Hymedesmia hallmanni
              Hymedesmia helgae
              Hymedesmia hibernica
              Hymedesmia irregularis
              Hymedesmia irritans
              Hymedesmia jamaicensis
              Hymedesmia jugalis
              Hymedesmia lacera
              Hymedesmia lamina
              Hymedesmia lancifera
              Hymedesmia latrunculioides
              Hymedesmia lenta
              Hymedesmia laevis
              Hymedesmia levis
              Hymedesmia lipochela
              Hymedesmia lobichela
              Hymedesmia longistylus
              Hymedesmia longurioides
              Hymedesmia lundbecki
              Hymedesmia macrosigma
              Hymedesmia mannarensis
              Hymedesmia mariondufresni
              Hymedesmia matthesi
              Hymedesmia mertoni
              Hymedesmia microchela
              Hymedesmia microstrongyla
              Hymedesmia minuta
              Hymedesmia mollis
              Hymedesmia mucronata
              Hymedesmia mucronella
              Hymedesmia murrayi
              Hymedesmia mutabilis
              Hymedesmia nigrescens
              Hymedesmia norvegica
              Hymedesmia nummota
              Hymedesmia nummulus
              Hymedesmia occulta
              Hymedesmia omissa
              Hymedesmia orientalis
              Hymedesmia oxneri
              Hymedesmia pachychela
              Hymedesmia palmatichelifera
              Hymedesmia pansa
              Hymedesmia parva
              Hymedesmia parvispicula
              Hymedesmia parvispiculata
              Hymedesmia peachi
              Hymedesmia perforata
              Hymedesmia pilata
              Hymedesmia planca
              Hymedesmia planisigma
              Hymedesmia plicata
              Hymedesmia poicilacantha
              Hymedesmia procumbens
              Hymedesmia prostrata
              Hymedesmia proteida
              Hymedesmia proxima
              Hymedesmia pugio
              Hymedesmia pulposa
              Hymedesmia rissoi
              Hymedesmia rugosa
              Hymedesmia senegalensis
              Hymedesmia serrulata
              Hymedesmia simillima
              Hymedesmia similis
              Hymedesmia spiniarcuata
              Hymedesmia spinosa
              Hymedesmia splenium
              Hymedesmia stephensi
              Hymedesmia storea
              Hymedesmia stylata
              Hymedesmia stylophora
              Hymedesmia tenuicula
              Hymedesmia tenuisigma
              Hymedesmia thielei
              Hymedesmia trichoma
              Hymedesmia truncata
              Hymedesmia uchinourensis
              Hymedesmia unguifera
              Hymedesmia velata
              Hymedesmia verrucosa
              Hymedesmia vomerula
              Hymedesmia zetlandica
              Hymedesmia brondstedi
              Hymedesmia coriacea
              Hymedesmia dermata
              Hymedesmia antarctica
              Hymedesmia fristedti
              Hymedesmia indivisa
              Hymedesmia longurius
              Hymedesmia odhneri
              Hymedesmia primitiva
              Hymedesmia stylifera
              Hymedesmia obtusata
              Hymedesmia dendyi
              Hymedesmia duplicata
              Hymedesmia exigua
              Hymedesmia tenuisclera
              Hymedesmia tenuissima
              Hymedesmia johnsoni
              Hymedesmia inflata
              Hymedesmia radiata
              Hymedesmia polita
              Hymedesmia pennata
              Hymedesmia trigonostellata
              Hymedesmia baculifera
              Hymedesmia similima
              Hymedesmia dujardinii
              Hymedesmia unguiculata
              Hymedesmia coronula
              Hymedesmia versicolor
              Hymedesmia veneta
              Hymedesmia dichela
              Hymedesmia constellata
              Hymedesmia tornotata
              Hymedesmia tenuissima
              Hymedesmia (Ectyodesmia)
              Hymedesmia acerata
              Hymedesmia schmidti
              Hymedesmia pustula
              Hymedesmia koehleri
              Hymedesmia paupertas
              Hymedesmia laevistylus
              Hymedesmia rectirhaphis
              Hymedesmia hallezi
              Hymedesmia inflata
              Hymedesmia lophastraea
              Hymedesmia crux
              Hymedesmia bonairensis
              Hymedesmia cohesibacilla
              Hymedesmia cratera
              Hymedesmia rathlinia
              Hymedesmia stellifera
              Hymedesmia platychela
              Hymedesmia clavigera
              Hymedesmia fictitia
              Hymedesmia vicaria
              Hymedesmia clavigera
              Hymedesmia mamillaris
              Hymedesmia derjugini
              Hymedesmia tornotoxa
            Hymoxenia
            Phorbas
            Plocamionida
            Plumohalichondria
            Pronax
            Pseudohalichondria
            Spanioplon
            Stylopus
            Stylostichon
            Suberotelites
            Cribrella
            Kirkpatrickia
            Myxodoryx
            Bipocillopsis
            Hymenamphiastra
            Acanthoxa
            Amoibodictya
            Clathrissa
            Hymendectyon
            Lissopocillon
            Merriamium
            Podotuberculum
            Sclerilla
            Stegxella
            Ectyodesmia
            Ectyostylopus
            Ferrerhernandezia
            Poecilochela
            Tylosigma
            Pronaxella
            Hymetrichita
          Iotrochotidae
          Myxillidae
          Tedaniidae
          Anchinoidae
          Desmacidonidae
          Chondropsidae
          Phellodermidae
        Latrunculina
      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
  Myxozoa
  Sipunculida
  Pentastomida
  Nemertini
Plantae
Fungi
Protozoa
Bacteria
Chromista
Archaea
Viruses
Monera