#nematode_worm__nematode__roundworm  unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic
  supertype:  worm  any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae
  member of:  phylum_Nematoda
  subtype:  common_roundworm__Ascaris_lumbricoides  intestinal parasite of humans and pigs
  subtype:  chicken_roundworm__chickenroundworm__Ascaridia_galli  intestinal parasite of domestic fowl
  subtype:  pinworm__threadworm__Enterobius_vermicularis  small threadlike worm infesting human intestines and rectum especially in children
  subtype:  eelworm  any of various small free-living plant-parasitic roundworms
     subtype:  vinegar_eel__vinegareel__vinegar_worm__vinegarworm__Anguillula_aceti__Turbatrix_aceti  minute eelworm that feeds on organisms that cause fermentation in e.g. vinegar
  subtype:  wheatworm__wheat_eel__wheateel__wheat_eelworm__wheateelworm__Tylenchus_tritici  small roundworm parasitic on wheat
  subtype:  trichina__Trichinella_spiralis  parasitic nematode occurring in the intestines of pigs and rats and human beings and producing larvae that form cysts in skeletal muscles
  subtype:  hookworm  parasitic blood-sucking roundworms having hooked mouth parts to fasten to the intestinal wall of human and other hosts
  subtype:  filaria  slender threadlike roundworms living in the blood and tissues of vertebrates; transmitted as larvae by biting insects
  subtype:  Guinea_worm__Dracunculus_medinensis  parasitic roundworm of India and Africa that lives beneath the skin of man and other vertebrates

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