#trematode__trematode_worm__trematodeworm  parasitic flatworms having external suckers for attaching to a host
  supertype:  flatworm__platyhelminth  parasitic or free-living worms having a flattened body
  member of:  class_Trematoda
  subtype:  liver_fluke__liverfluke__Fasciola_hepatica  flatworm parasitic in liver and bile ducts of domestic animals and humans
  subtype:  Fasciolopsis_buski  fluke that is parasitic on humans and swine; common in eastern Asia
  subtype:  schistosome__blood_fluke__bloodfluke  flatworms parasitic in the blood vessels of mammals

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