#biogeographical_region__biogeographicalregion  an area of the Earth determined by distribution of flora and fauna
  supertype:  #region  a large indefinite location on the surface of the Earth; "penguins inhabit the polar regions"
  subtype:  #benthos__bentho__benthic_division__benthicdivision__benthonic_zone__benthoniczone  a region including the bottom of the sea and the littoral zones

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