#costia__Costia_necatrix  a flagellate that is the cause of the frequently fatal fish disease costiasis
  supertype:  #flagellate_protozoan__flagellate__flagellated_protozoan__flagellatedprotozoan__mastigophoran__mastigophore  usually nonphotosynthetic free-living protozoan with whiplike appendages; some pathogens of humans and other animals
  member of:  #genus_Costia  a genus of flagellate protoctista
     member of:  #order_Polymastigina__Polymastigina  small usually parasitic flagellates
        member of:  #subclass_Zoomastigina__Zoomastigina  in some classifications considered a phylum of the kingdom Protista; holozoic or saprozoic flagellates
           member of:  #class_Mastigophora__Mastigophora__Flagellata__class_Flagellata  protozoa having flagella
              member of:  #phylum_Protozoa__Protozoa  in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifers
                 member of:  #kingdom_Protoctista__Protoctista  in most modern classifications, replacement for the Protista; includes: Protozoa; Euglenophyta; Chlorophyta; Cryptophyta; Heterokontophyta; Rhodophyta; unicellular protists and their descendant multicellular organisms: regarded as distinct from plants and animals

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