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
        Haplosclerina
          Callyspongiidae
          Chalinidae
            Rhaphisia
            Reniera
            Adocia
            Chalina
            Chalinula
            Cladocroce
            Dendroxea
            Haliclona
            Pellinula
            Protoschmidtia
            Rhizoniera
            Tedaniella
            Acervochalina
            Siphocalina
            Orina
            Sigmadocia
            Gellius
                Gellius binarius
                Gellius esperi
                Gellius flagellifera
                Gellius marismedi
                Gellius microsigma
                Gellius ravus
                Gellius rhaphidiophorus
                Gellius tenuisigma
                Gellius uncinatus
                Gellius angulatus
                Gellius laurentinus
                Gellius pilosus
                Gellius rudis
                Gellius carduus
                Gellius cucurbitiformis
                Gellius tylotoxus
                Gellius arcuarius
                Gellius capillifer
                Gellius macrosigma
                Gellius fibrosus
                Gellius truncatus
                Gellius arcofer
                Gellius bidens
                Gellius calyx
                Gellius fimbriatus
                Gellius hartlaubi
                Gellius stylifer
                Gellius forcipatus
                Gellius lacazei
                Gellius microtoxa
                Gellius microxifer
                Gellius amboinensis
                Gellius anatarius
                Gellius arcticus
                Gellius arnesenae
                Gellius borzatii
                Gellius calcineus
                Gellius cellarius
                Gellius centrangulatus
                Gellius ceratina
                Gellius constans
                Gellius digitatus
                Gellius dubius
                Gellius flabelliformis
                Gellius friabilis
                Gellius glaberrimus
                Gellius glacialis
                Gellius hispidulus
                Gellius intermedius
                Gellius irregularis
                Gellius irregularis
                Gellius laevis
                Gellius latisigmae
                Gellius microsigma
                Gellius panis
                Gellius pedunculatus
                Gellius perforatus
                Gellius petrocalyx
                Gellius phillipensis
                Gellius primitivus
                Gellius proximus
                Gellius pyrrhi
                Gellius regius
                Gellius reptans
                Gellius raphidiophora
                Gellius ridleyi
                Gellius strongylatus
                Gellius subtilis
                Gellius tenellus
                Gellius tener
                Gellius textapatina
                Gellius toxius
                Gellius toxophorus
                Gellius toxotes
                Gellius tremulus
                Gellius tubuloramosus
                Gellius tylotoxa
                Gellius abbreviatus
                Gellius canaliculatus
                Gellius sagittarius
                Gellius vasiformis
                Gellius aculeatus
                Gellius incrustans
                Gellius luridus
                Gellius apertus
                Gellius megastoma
                Gellius petrosioides
                Gellius cymiformis
                Gellius fibulatus
                Gellius bioxeata
                Gellius flagellifer
                Gellius massa
                Gellius massa
                Gellius jugosus
                Gellius couchii
                Gellius robustus
                Gellius gemmuliferus
                Gellius varius
                Gellius imperialis
                Gellius microxea
                Gellius vagabundus
                Gellius edaphus
                Gellius phakellioides
                Gellius benedeni
                Gellius arcoferus
                Gellius jorii
                Gellius infundibuliformis
                Gellius pumiceus
                Gellius porosus
            Phylosiphonia
            Arcesios
            Chalinodendron
            Diplodemia
            Euchalinopsis
            Kallypilidion
            Katiba
            Lessepsia
            Nara
            Neoadocia
            Pellinella
            Prianos
            Reniclona
            Toxadocia
            Veluspa
            Philotia
            Asychis
            Toxiclona
            Halichoclona
            Dendrectilla
            Polysiphonia
          Niphatidae
          Haliclonidae
          Adociidae
          Renierinae
          Gelliadae
          Renieridae
          Gelliidae
          Gelliinae
          Cavochalinidae
          Tubulodigitidae
        Petrosina
      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
  Myxozoa
  Sipunculida
  Pentastomida
  Nemertini
Plantae
Fungi
Protozoa
Bacteria
Chromista
Archaea
Viruses
Monera