Click the links to browse through the WoRMS marine species taxonomy.
Animalia
  Mollusca
    Polyplacophora
    Gastropoda
      Prosobranchia
      Heterobranchia
      Cocculiniformia
      Neritimorpha
      Vetigastropoda
      Apogastropoda
      Caenogastropoda
        Neogastropoda
        Sorbeoconcha
        [unassigned] Caenogastropoda
        Littorinimorpha
          Littorinoidea
          Rissooidea
            Hydrobiidae
            Assimineidae
            Iravadiidae
            Rissoidae
              Rissoininae
              Rissoinae
                Alvania
                Amphirissoa
                Benthonella
                Benthonellania
                Boreocingula
                Botryphallus
                Cingula
                Crisilla
                Frigidoalvania
                Gofasia
                Manzonia
                Obtusella
                Onoba
                  Onoba aculeus
                  Onoba dimassai
                  Onoba gianninii
                  Onoba guzmani
                  Onoba improcera
                  Onoba islandica
                  Onoba josae
                  Onoba leptalea
                  Onoba manzoniana
                  Onoba mighelsii
                  Onoba moreleti
                  Onoba obliqua
                  Onoba semicostata
                  Onoba tarifensis
                  Onoba torelli
                  Onoba aculea
                  Onoba candida
                  Onoba oliverioi
                  Onoba nunezi
                  Onoba anderssoni
                  Onoba delecta
                  Onoba georgiana
                  Onoba grisea
                  Onoba paucilirata
                  Onoba schraderi
                  Onoba steineni
                  Onoba turqueti
                  Onoba jeffreysi
                  Onoba jeffrejsii
                  Onoba verrilli
                  Onoba galaica
                  Onoba breogani
                  Onoba gigas
                  Onoba striola
                  Onoba sulcula
                  Onoba aedonis
                  Onoba algida
                  Onoba amissa
                  Onoba brachia
                  Onoba crassicordata
                  Onoba cruzi
                  Onoba fuegoensis
                  Onoba glaphyra
                  Onoba glypta
                  Onoba lacuniformis
                  Onoba lusciniae
                  Onoba merelinoides
                  Onoba platia
                  Onoba protofimbriata
                  Onoba subaedonis
                  Onoba subincisa
                  Onoba transenna
                  Onoba tristanensis
                  Onoba bickertoni
                  Onoba ovata
                  Onoba fortis
                  Onoba fusiformis
                  Onoba brunnea
                  Onoba cerinella
                  Onoba cingulata
                  Onoba compsa
                  Onoba kurilensis
                  Onoba kyskensis
                  Onoba laticingulata
                  Onoba russica
                  Onoba tenuistriata
                  Onoba aurivillii
                  Onoba bakeri
                  Onoba carpenteri
                  Onoba castanella
                  Onoba dalli
                  Onoba forresterensis
                  Onoba muriei
                  Onoba palmeri
                  Onoba alaskana
                  Onoba candidissima
                  Onoba multilirata
                  Onoba kermadecensis
                  Onoba australiae
                  Onoba supracostata
                  Onoba alfredensis
                  Onoba (Subestea)
                  Onoba elegans
                  Onoba lubrica
                  Onoba rubicunda
                  Onoba (Ovirissoa)
                  Onoba (Manawatawhia)
                      Onoba (Manawatawhia) analoga
                  Onoba analoga
                  Onoba schythei
                  Onoba scotiana
                  Onoba alpha
                  Onoba aupouria
                  Onoba beta
                  Onoba delicatula
                  Onoba delta
                  Onoba edita
                  Onoba fallai
                  Onoba foveauxiana
                  Onoba fumata
                  Onoba gamma
                  Onoba inornata
                  Onoba insculpta
                  Onoba iredalei
                  Onoba morioria
                  Onoba obliquata
                  Onoba oliveri
                  Onoba parvula
                  Onoba paucicostata
                  Onoba sorenseni
                  Onoba tenuistriata
                  Onoba delli
                  Onoba duplicata
                  Onoba exuta
                  Onoba paupereques
                  Onoba simplex
                Peringiella
                Plagyostila
                Pseudosetia
                Pusillina
                Rissoa
                Rudolphosetia
                Setia
                Voorwindia
                Ovirissoa
                Powellisetia
                Subonoba
                Tomlinella
                Plagiostyla
                Pontiturboella
                Porosalvania
                Merelina
                Simulamerelina
                Punctulum
                Parashiela
                Lucidestea
                Lironoba
                Attenuata
                Alvinia
                Auriconoba
                Mutiturboella
                Radiata
                Turgidina
                Benzia
                Varisetia
                Haurakia
                Moniziella
                Flemellia
                Striatestea
                Galeodinopsis
            Tornidae
            Adeorbidae
            Caecidae
            Truncatellidae
            Barleeidae
            Anabathridae
            Elachisinidae
            Trochaclididae
            Calopiidae
            Cochliopidae
            Emblandidae
            Epigridae
            Falsicingulidae
            Hydrococcidae
            Barleeiidae
          Stromboidea
          Hipponicoidea
          Crepiduloidea
          Xenophoroidea
          Cypraeoidea
          Heteropoda
          Naticoidea
          Tonnoidea
          Cassoidea
          Rissoacea
          Calyptraeoidea
          Capuloidea
          Vanikoroidea
          Cingulopsoidea
          Pterotracheoidea
          Velutinoidea
          Vermetoidea
          Ficoidea
        Stenoglossa
        Hypsogastropoda
      Patellogastropoda
    Scaphopoda
    Bivalvia
    Monoplacophora
    Solenogastres
    Cephalopoda
    Placophora
    Aculifera
    Conchifera
    Pelecypoda
    Caudofoveata
    Lamellibranchiata
    Conchifera
  Porifera
  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