Click the links to browse through the WoRMS marine species taxonomy.
Animalia
  Mollusca
    Polyplacophora
    Gastropoda
      Prosobranchia
      Heterobranchia
      Cocculiniformia
      Neritimorpha
      Vetigastropoda
      Apogastropoda
      Caenogastropoda
        Neogastropoda
          Muricoidea
            Muricidae
              Rapaninae
                Rapana
                Stramonita
                Thais
                Pinaxia
                Nassa
                Purpura
                  Purpura persica
                  Purpura panama
                  Purpura ochrostoma
                  Purpura chrysostoma
                  Purpura venosa
                  Purpura baileyana
                  Purpura flindersi
                  Purpura striatum
                  Purpura rupestris
                  Purpura scobina
                  Purpura rugosa
                  Purpura albomarginata
                  Purpura bicolor
                  Purpura tristis
                  Purpura littorinoides
                  Purpura propinqua
                  Purpura cornigera
                  Purpura ocellata
                  Purpura tritoniformis
                  Purpura loca
                  Purpura pileopsis
                  Purpura angulifera
                  Purpura callosa
                  Purpura scalaris
                  Purpura aegrota
                  Purpura monstruosa
                  Purpura laurentiana
                  Purpura lobata
                  Purpura alveolata
                  Purpura subturrita
                  Purpura baccata
                  Purpura elata
                  Purpura spathulifera
                  Purpura alba
                  Purpura smithi
                  Purpura bollonsi
                  Purpura neglecta
                  Purpura humilis
                  Purpura aculeata
                  Purpura affinis
                  Purpura alabaster
                  Purpura alata
                  Purpura alata
                  Purpura albescens
                  Purpura albocincta
                  Purpura amygdala
                  Purpura analoga
                  Purpura anaxares
                  Purpura albofasciata
                  Purpura albolabris
                  Purpura aperta
                  Purpura armigera
                  Purpura ascensionis
                  Purpura aterrima
                  Purpura attenuata
                  Purpura aurantiaca
                  Purpura barcinonensis
                  Purpura bicarinata
                  Purpura biconica
                  Purpura bimaculata
                  Purpura biserialis
                  Purpura blainvillei
                  Purpura brevidens
                  Purpura bronni
                  Purpura brunneus
                  Purpura buccinea
                  Purpura buccinoidea
                  Purpura lapillus
                  Purpura bufonides
                  Purpura callaoensis
                  Purpura callifera
                  Purpura callosa
                  Purpura canaliculata
                  Purpura cancellata
                  Purpura cancellata
                  Purpura cancellata
                  Purpura capensis
                  Purpura lefevrei
                  Purpura leucostoma
                  Purpura lineata
                  Purpura lineata
                  Purpura lineolata
                  Purpura lineolata
                  Purpura lischkei
                  Purpura macrostoma
                  Purpura macrostoma
                  Purpura (Cuma)
                  Purpura (Ricinula)
                  Purpura (Stramonita)
                  Purpura carinata
                  Purpura carinifera
                  Purpura carolensis
                  Purpura cassidiformis
                  Purpura castanea
                  Purpura centriquadata
                  Purpura chaidea
                  Purpura chocolata
                  Purpura chusani
                  Purpura cingulata
                  Purpura cingulifera
                  Purpura clathrata
                  Purpura clavigera
                  Purpura columellaris
                  Purpura congener
                  Purpura cornucervi
                  Purpura coronata
                  Purpura crassa
                  Purpura cribrosa
                  Purpura cuspidata
                  Purpura decemcostata
                  Purpura delessertiana
                  Purpura diadema
                  Purpura distinguenda
                  Purpura dubia
                  Purpura dumasi
                  Purpura duplex
                  Purpura echinata
                  Purpura edwardsii
                  Purpura echinulata
                  Purpura emarginata
                  Purpura engonata
                  Purpura eudeli
                  Purpura fasciata
                  Purpura fasciata
                  Purpura floridana
                  Purpura foliacea
                  Purpura forbesii
                  Purpura fragum
                  Purpura francolinus
                  Purpura freycinetii
                  Purpura fuscata
                  Purpura fusiformis
                  Purpura gemmulata
                  Purpura gigantea
                  Purpura gigantea
                  Purpura granulata
                  Purpura grateloupiana
                  Purpura grayi
                  Purpura guineensis
                  Purpura harpa
                  Purpura helena
                  Purpura heyseana
                  Purpura imbricata
                  Purpura imperialis
                  Purpura incarnata
                  Purpura inerma
                  Purpura infumata
                  Purpura intermedia
                  Purpura javanica
                  Purpura kiosquiformis
                  Purpura laevis
                  Purpura lapilloides
                      Purpura lapilloides var. aurantia
                  Purpura mancinelloides
                  Purpura marginatra
                  Purpura marmorata
                  Purpura martinetana
                  Purpura melones
                  Purpura deltoidea
                  Purpura multilineata
                  Purpura minor
                  Purpura muricata
                  Purpura muricina
                  Purpura muricoides
                  Purpura muricoides
                  Purpura musiva
                  Purpura nassoides
                  Purpura nebulosa
                  Purpura nodulifera
                  Purpura nodulosa
                  Purpura novaehollandiae
                  Purpura nuttalli
                  Purpura oceanica
                  Purpura ostrina
                  Purpura ovalis
                  Purpura pansa
                  Purpura patens
                  Purpura peruviana
                  Purpura planospira
                  Purpura pothuani
                  Purpura jatou
                  Purpura problematica
                  Purpura pseudamygdala
                  Purpura quoyi
                  Purpura rudis
                  Purpura rudolphi
                  Purpura suppressus
                  Purpura turbinoides
                  Purpura squamigera
                  Purpura haematura
                  Purpura unifascialis
                  Purpura haemastoma
                  Purpura viduata
                  Purpura striata
                  Purpura flammea
                  Purpura neritoides
                  Purpura speciosa
                  Purpura triangularis
                  Purpura triserialis
                  Purpura luteomarginata
                  Purpura bitubercularis
                  Purpura undata
                  Purpura kienerii
                  Purpura subdeltoidea
                  Purpura major
                  Purpura tumulosa
                  Purpura truncata
                  Purpura pura
                  Purpura trinitatensis
                  Purpura trigona
                  Purpura scalaris
                  Purpura umbilicata
                  Purpura tissoti
                  Purpura variabilis
                  Purpura tosana
                  Purpura succincta
                  Purpura textilosa
                  Purpura clathrata
                  Purpura saxicola
                  Purpura septentrionalis
                  Purpura squamosa
                  Purpura wahlbergi
                  Purpura zeyheri
                  Purpura spirata
                  Purpura senegalla
                  Purpura spiralis
                  Purpura sirat
                  Purpura virgineus
                  Purpura scabra
                  Purpura variegata
                  Purpura tuberosa
                  Purpura fenestrata
                  Purpura marginalba
                  Purpura nodosa
                  Purpura sphaeridia
                  Purpura squamosa
                  Purpura squamulosa
                  Purpura stellaris
                  Purpura violacea
                  Purpura scabra
                Vexilla
                Drupa
                Sistrum
                Ricinula
                Acanthais
                Agnewia
                Concholepas
                Conchulus
                Conchopatella
                Cymia
                Dicathais
                Canrena
                Pentadactylus
                Neothais
                Phycothais
                Plicopurpura
                Microtoma
                Purpurella
                Patellipurpura
                Conothais
                Reishia
                Semiricinula
                Taurasia
                Menathais
                Tribulus
                Planithais
                Provexillum
                Simplicotaurasia
                Cuma
                Ricinella
                Mancinella
                Cumopsis
              Ocenebrinae
              Typhinae
              Haustrinae
              Muricopsinae
              Trophoninae
              Ergalataxinae
              Tripterotyphinae
              Coralliophilinae
            Coralliophilidae
            Cystiscidae
            Marginellidae
            Mitridae
            Turbinellidae
            Volutidae
            Volutomitridae
            Costellariidae
            Harpidae
            Pleioptygmatidae
            Columbariidae
            Babyloniidae
            Strepsiduridae
          Cancellarioidea
          Conoidea
          Buccinoidea
          Volutoidea
          Olivoidea
          Pseudolivoidea
        Sorbeoconcha
        [unassigned] Caenogastropoda
        Littorinimorpha
        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