Click the links to browse through the WoRMS marine species taxonomy.
Animalia
  Mollusca
  Porifera
  Platyhelminthes
  Nematoda
  Annelida
  Nemertina
  Arthropoda
    Crustacea
      Remipedia
      Branchiopoda
      Maxillopoda
      Malacostraca
        Eumalacostraca
          Eucarida
            Euphausiacea
            Amphionidacea
            Decapoda
              Dendrobranchiata
              Pleocyemata
                Anomura
                  Galatheoidea
                  Hippoidea
                  Paguroidea
                  Lithodoidea
                  Kiwaoidea
                  Chirostyloidea
                    Chirostylidae
                      Gastroptychus
                      Uroptychus
                          Uroptychus bouvieri
                          Uroptychus concolor
                          Uroptychus maroccanus
                          Uroptychus rubrovittatus
                          Uroptychus nitidus
                          Uroptychus foulisi
                          Uroptychus simiae
                          Uroptychus undecimspinosus
                          Uroptychus bicavus
                          Uroptychus edisonicus
                          Uroptychus thermalis
                          Uroptychus alcocki
                          Uroptychus babai
                          Uroptychus belos
                          Uroptychus calcar
                          Uroptychus cardus
                          Uroptychus empheres
                          Uroptychus flindersi
                          Uroptychus hesperius
                          Uroptychus laperousazi
                          Uroptychus latus
                          Uroptychus litosus
                          Uroptychus longicheles
                          Uroptychus longvae
                          Uroptychus multispinosus
                          Uroptychus nowra
                          Uroptychus paracrassior
                          Uroptychus patulus
                          Uroptychus subsolanus
                          Uroptychus yokoyai
                          Uroptychus zeidleri
                          Uroptychus oxymerus
                          Uroptychus acostalis
                          Uroptychus aguayoi
                          Uroptychus alius
                          Uroptychus altus
                          Uroptychus amabilis
                          Uroptychus armatus
                          Uroptychus anacaena
                          Uroptychus anatonus
                          Uroptychus australis
                          Uroptychus bacillimanus
                          Uroptychus bellus
                          Uroptychus bispinatus
                          Uroptychus brachydactylus
                          Uroptychus brevipes
                          Uroptychus brevirostris
                          Uroptychus brevis
                          Uroptychus brevisquamatus
                          Uroptychus brucei
                          Uroptychus capillatus
                          Uroptychus cavirostris
                          Uroptychus chacei
                          Uroptychus ciliatus
                          Uroptychus comptus
                          Uroptychus convexus
                          Uroptychus crassior
                          Uroptychus crassipes
                          Uroptychus crosnieri
                          Uroptychus dentatus
                          Uroptychus ensirostris
                          Uroptychus flinders
                          Uroptychus fornicatus
                          Uroptychus fusimanus
                          Uroptychus glaber
                          Uroptychus gordonae
                          Uroptychus gracilimanus
                          Uroptychus granulatus
                          Uroptychus hamatus
                          Uroptychus inclinis
                          Uroptychus indicus
                          Uroptychus insignis
                          Uroptychus intermedius
                          Uroptychus jamaicensis
                          Uroptychus japonicus
                          Uroptychus joloensis
                          Uroptychus kaitara
                          Uroptychus latirostris
                          Uroptychus levicrustus
                          Uroptychus longioculus
                          Uroptychus longior
                          Uroptychus magnispinatus
                          Uroptychus maori
                          Uroptychus mauritius
                          Uroptychus minutus
                          Uroptychus murrayi
                          Uroptychus nanophyes
                          Uroptychus naso
                          Uroptychus nigricapillis
                          Uroptychus novaezealandiae
                          Uroptychus occidentalis
                          Uroptychus occultispinatus
                          Uroptychus onychodactylus
                          Uroptychus orientalis
                          Uroptychus paenultimus
                          Uroptychus paku
                          Uroptychus parvulus
                          Uroptychus pilosus
                          Uroptychus politus
                          Uroptychus princeps
                          Uroptychus pronus
                          Uroptychus pubescens
                          Uroptychus raymondi
                          Uroptychus remotispinatus
                          Uroptychus rugosus
                          Uroptychus rutua
                          Uroptychus sagamiae
                          Uroptychus scambus
                          Uroptychus scandens
                          Uroptychus setosidigitalis
                          Uroptychus setosipes
                          Uroptychus sexspinosus
                          Uroptychus sibogae
                          Uroptychus similis
                          Uroptychus singularis
                          Uroptychus siraji
                          Uroptychus soyomaruae
                          Uroptychus spiniger
                          Uroptychus spinimanus
                          Uroptychus spinirostris
                          Uroptychus spinosus
                          Uroptychus sternospinosus
                          Uroptychus suluensis
                          Uroptychus toka
                          Uroptychus tomentosus
                          Uroptychus triangularis
                          Uroptychus tridentatus
                          Uroptychus uncifer
                          Uroptychus valdiviae
                          Uroptychus vandamae
                          Uroptychus webberi
                          Uroptychus wolffi
                          Uroptychus xipholepis
                          Uroptychus yaldwyni
                          Uroptychus zezuensis
                          Uroptychus cyrano
                          Uroptychus pinocchio
                          Uroptychus parilis
                          Uroptychus cartesi
                      Uroptychodes
                    Kiwaidae
                    Eumunididae
                Brachyura
                Caridea
                Palinura
                Stenopodidea
                Thalassinidea
          Peracarida
        Hoplocarida
      Ostracoda
      Pentastomata
    Chelicerata
    Myriapoda
    Hexapoda
  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