#phylum_Nematoda__Nematoda__Aschelminthes__phylum_Aschelminthes  unsegmented worms: roundworms; threadworms; eelworms
  supertype:  phylum  (biology) the major taxonomic group of animals and plants; contains classes
  member of:  kingdom_Animalia
  member:  helminth__parasitic_worm__parasiticworm  worm that is parasitic on the intestines of vertebrates especially roundworms and tapeworms and flukes
  member:  class_Aphasmidia__Aphasmidia  one of two subgroups of Nematoda used in some classification systems
  member:  class_Phasmidia__Phasmidia  one of two subgroups of Nematoda used in some classification systems
  member:  nematode_worm__nematode__roundworm  unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic
  member:  family_Ascaridae__Ascaridae  large roundworms parasitic in intestines of vertebrates
     member:  genus_Ascaris__Ascaris  type genus of the family Ascaridae: roundworms with a three-lipped mouth
        member:  common_roundworm__Ascaris_lumbricoides  intestinal parasite of humans and pigs
     member:  genus_Ascaridia__Ascaridia  roundworm having a preanal sucker
        member:  chicken_roundworm__chickenroundworm__Ascaridia_galli  intestinal parasite of domestic fowl
  member:  family_Oxyuridae__Oxyuridae  pinworms
     member:  genus_Enterobius__Enterobius  pinworms
        member:  pinworm__threadworm__Enterobius_vermicularis  small threadlike worm infesting human intestines and rectum especially in children
  member:  family_Cephalobidae__Cephalobidae  a family of Nematoda
     member:  genus_Anguillula__Anguillula__Turbatrix__genus_Turbatrix  a genus of Cephalobidae
        member:  vinegar_eel__vinegareel__vinegar_worm__vinegarworm__Anguillula_aceti__Turbatrix_aceti  minute eelworm that feeds on organisms that cause fermentation in e.g. vinegar
  member:  family_Tylenchidae__Tylenchidae  a family of Nematoda
     member:  genus_Tylenchus__Tylenchus  type genus of the family Tylenchidae
        member:  wheatworm__wheat_eel__wheateel__wheat_eelworm__wheateelworm__Tylenchus_tritici  small roundworm parasitic on wheat
  member:  family_Ancylostomatidae__Ancylostomatidae  hookworms
     member:  hookworm  parasitic blood-sucking roundworms having hooked mouth parts to fasten to the intestinal wall of human and other hosts
  member:  family_Filariidae__Filariidae  threadlike roundworms
     member:  filaria  slender threadlike roundworms living in the blood and tissues of vertebrates; transmitted as larvae by biting insects
  member:  family_Dracunculidae__Dracunculidae  greatly elongated roundworm
     member:  genus_Dracunculus__Dracunculus  type genus of the family Dracunculidae
        member:  Guinea_worm__Dracunculus_medinensis  parasitic roundworm of India and Africa that lives beneath the skin of man and other vertebrates

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