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
                    Alvania aartseni
                    Alvania abstersa
                    Alvania adiaphoros
                    Alvania adinogramma
                    Alvania aeoliae
                    Alvania algeriana
                    Alvania amatii
                    Alvania angioyi
                    Alvania angularis
                    Alvania aspera
                    Alvania aurantiaca
                    Alvania basteriae
                    Alvania beani
                    Alvania canariensis
                    Alvania cancapae
                    Alvania cancellata
                    Alvania carinata
                    Alvania cimex
                    Alvania cimicoides
                    Alvania cingulata
                    Alvania clarae
                    Alvania clathrella
                    Alvania colossophilus
                    Alvania consociella
                    Alvania corona
                    Alvania coseli
                    Alvania datchaensis
                    Alvania dianiensis
                    Alvania dictyophora
                    Alvania dijkstrai
                    Alvania dipacoi
                    Alvania discors
                    Alvania disparilis
                    Alvania dorbignyi
                    Alvania electa
                    Alvania elegantissima
                    Alvania euchila
                    Alvania fischeri
                    Alvania formicarum
                    Alvania fractospira
                    Alvania gagliniae
                    Alvania geryonia
                    Alvania guancha
                    Alvania hallgassi
                    Alvania hirta
                    Alvania hispidula
                    Alvania imperspicua
                    Alvania incognita
                    Alvania internodula
                    Alvania iunoniae
                    Alvania jeffreysi
                    Alvania johannae
                    Alvania joseae
                    Alvania lactea
                    Alvania lamellata
                    Alvania lanciae
                    Alvania leacocki
                    Alvania lineata
                    Alvania litoralis
                    Alvania lucinae
                    Alvania macandrewi
                    Alvania mamillata
                    Alvania marchadi
                    Alvania mediolittoralis
                    Alvania microstriata
                    Alvania minuta
                    Alvania moerchi
                    Alvania moniziana
                    Alvania multiquadrata
                    Alvania nestaresi
                    Alvania nonsculpta
                    Alvania obliqua
                    Alvania pagodula
                    Alvania parvula
                    Alvania piersmai
                    Alvania platycephala
                    Alvania porcupinae
                    Alvania poucheti
                    Alvania pseudoareolata
                    Alvania pseudosyngenes
                    Alvania punctura
                    Alvania renei
                    Alvania rudis
                    Alvania scabra
                    Alvania schwartziana
                    Alvania scrobiculata
                    Alvania sculptilis
                    Alvania settepassii
                    Alvania simulans
                    Alvania sleursi
                    Alvania slieringsi
                    Alvania sororcula
                    Alvania spinosa
                    Alvania stenolopha
                    Alvania subareolata
                    Alvania subcalathus
                    Alvania subcrenulata
                    Alvania subsoluta
                    Alvania tarsodes
                    Alvania tenera
                    Alvania tessellata
                    Alvania testae
                    Alvania tomentosa
                    Alvania verrilli
                    Alvania watsoni
                    Alvania weinkauffi
                    Alvania wyvillethomsoni
                    Alvania zetlandica
                    Alvania zoderi
                    Alvania zylensis
                    Alvania abyssicola
                    Alvania semistriata
                    Alvania wareni
                    Alvania grancanariensis
                    Alvania bicingulata
                    Alvania elisae
                    Alvania vermaasi
                    Alvania oliverioi
                    Alvania villarii
                    Alvania carpenteri
                    Alvania alboranensis
                    Alvania claudioi
                    Alvania dalmatica
                    Alvania janmayeni
                    Alvania seinensis
                    Alvania micropilosa
                    Alvania elenae
                    Alvania hyerensis
                    Alvania suroiti
                    Alvania microtuberculata
                    Alvania funiculata
                    Alvania macella
                    Alvania garrafensis
                    Alvania debruynei
                    Alvania dejongi
                    Alvania turkensis
                    Alvania annobonensis
                    Alvania beanii
                    Alvania auberiana
                    Alvania colombiana
                    Alvania gradata
                    Alvania precipitata
                    Alvania ignota
                    Alvania flexilis
                    Alvania marioi
                    Alvania regina
                    Alvania richeri
                    Alvania lavaleyei
                    Alvania balearica
                    Alvania josefoi
                    Alvania cabrensis
                    Alvania gemina
                    Alvania portentosa
                    Alvania gascoignei
                    Alvania lampra
                    Alvania emaciata
                    Alvania arubensis
                    Alvania bermudensis
                    Alvania campta
                    Alvania canonica
                    Alvania curacaoensis
                    Alvania deliciosa
                    Alvania faberi
                    Alvania guesti
                    Alvania herwigia
                    Alvania meridioamericana
                    Alvania moolenbeeki
                    Alvania valeriae
                    Alvania gofasi
                    Alvania fariai
                    Alvania lucasana
                    Alvania herrerae
                    Alvania concinna
                    Alvania ferruginea
                    Alvania tumida
                    Alvania compacta
                    Alvania microglypta
                    Alvania oldroydae
                    Alvania rosana
                    Alvania trachisma
                    Alvania halia
                    Alvania purpurea
                    Alvania aequisculpta
                    Alvania cosmia
                    Alvania bartolomensis
                    Alvania keenae
                    Alvania kyskaensis
                    Alvania pedroana
                    Alvania filosa
                    Alvania alaskana
                    Alvania dinora
                    Alvania burrardensis
                    Alvania novarensis
                    Alvania profundicola
                    Alvania crystallina
                    Alvania ogasawarana
                    Alvania sombrerensis
                    Alvania stigmata
                    Alvania subcancellata
                    Alvania townsendi
                    Alvania versoverana
                    Alvania trajectus
                    Alvania isolata
                    Alvania firma
                    Alvania formosita
                    Alvania occidua
                    Alvania strangei
                    Alvania argentea
                    Alvania fenestrata
                    Alvania kowiensis
                    Alvania ima
                    Alvania (Linemera)
                    Alvania filocincta
                    Alvania verconiana
                    Alvania beyersi
                    Alvania deneti
                    Alvania nicobarica
                    Alvania thouinensis
                    Alvania kermadecensis
                    Alvania abrupta
                    Alvania aupouria
                    Alvania bounteyensis
                    Alvania exserta
                    Alvania maclurgi
                    Alvania pinguis
                    Alvania pinguoides
                    Alvania solitaria
                    Alvania venusta
                    Alvania ima
                Amphirissoa
                Benthonella
                Benthonellania
                Boreocingula
                Botryphallus
                Cingula
                Crisilla
                Frigidoalvania
                Gofasia
                Manzonia
                Obtusella
                Onoba
                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