Central Taxonomic Thesaurus

Taxon Search
  Animalia
      Arthropoda
            Crustacea
                    Decapoda
                      Pleocyemata
                        Astacidea
                          Astacoidea
                            Astacidae
                                     Astacus
                                     Pacifastacus
                                       Pacifastacus (Hobbsastacus)
                                       Pacifastacus (Pacifastacus)