#ectoparasite__ectozoon__ectozoa__epizoa  any external parasitic organism (as fleas)
  supertype:  #parasite  an animal or plant that lives in or on a host (another animal or plant); the parasite obtains nourishment from the host without benefiting or killing the host
  subtype:  #flea  any wingless blood-sucking parasitic insect noted for ability to leap
     subtype:  #Pulex_irritans  the most common flea attacking humans
     subtype:  #dog_flea__dogflea__Ctenocephalides_canis  flea that attacks dogs and cats
     subtype:  #cat_flea__catflea__Ctenocephalides_felis  flea that breeds chiefly on cats and dogs and rats
     subtype:  #chigoe_flea__chigoe__chigger__Tunga_penetrans  small tropical flea; the fertile female burrows under the skin of the host including humans
     subtype:  #sticktight_flea__sticktight__Echidnophaga_gallinacea  parasitic on especially the heads of chickens

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