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