#spirillum  spirally twisted elongate rodlike bacteria usually living in stagnant water
  supertype:  eubacteria__eubacterium__truebacteria  a large group of bacteria having rigid cell walls; motile types have flagella
  subtype:  ratbite_fever_bacterium  a bacterium causing rat-bite fever
  member of:  genus_Spirillum  a genus of bacteria
     member of:  family_Spirillaceae__Spirillaceae  rigid spirally curved elongate bacteria
        member of:  order_Pseudomonadales__Pseudomonadales  one of two usually recognized orders of true bacteria; gram-negative spiral or spherical or rod-shaped bacteria usually motile by polar flagella; some contain photosynthetic pigments
           member of:  division_Eubacteria  one-celled monerans having simple cells with rigid walls and (in motile types) flagella
              member of:  kingdom_Monera__Monera  prokaryotic bacteria and blue-green algae and various primitive pathogens; because of lack of consensus on how to divide the organisms into phyla informal names are used for the major divisions

No statement uses or specializes spirillum; click here to add one.