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 (Stylopus)
                Hymedesmia (Stylopus) coriacea
                Hymedesmia (Stylopus) dermata
                    Hymedesmia (Stylopus) dermata var. antarctica
                Hymedesmia (Stylopus) longurius
                Hymedesmia (Stylopus) obtusata
                Hymedesmia (Stylopus) odhneri
                Hymedesmia (Stylopus) primitiva
                Hymedesmia (Stylopus) stylifera
                Hymedesmia (Stylopus) parvispicula
                Hymedesmia (Stylopus) antarctica
                Hymedesmia (Stylopus) arndti
                Hymedesmia (Stylopus) australiensis
                Hymedesmia (Stylopus) dendyi
                Hymedesmia (Stylopus) fristedti
                Hymedesmia (Stylopus) indivisa
                Hymedesmia (Stylopus) oculifera
                Hymedesmia (Stylopus) indivisus
                Hymedesmia (Stylopus) hibernica
                Hymedesmia (Stylopus) lissostyla
                Hymedesmia (Stylopus) australis
                Hymedesmia (Stylopus) mucronella
                Hymedesmia (Stylopus) aequata
                Hymedesmia (Stylopus) tornotata
                Hymedesmia (Stylopus) acerata
                Hymedesmia (Stylopus) pulposus
                Hymedesmia (Stylopus) nigrescens
                Hymedesmia (Stylopus) crami
              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