#lesser_ape  gibbons and siamangs
  supertype:  anthropoid_ape  any tailless ape of the families Pongidae and Hylobatidae
  member of:  family_Hylobatidae
  subtype:  gibbon__Hylobates_lar  smallest and most perfectly anthropoid arboreal ape having long arms and no tail; of southern Asia and East Indies
  subtype:  siamang__Hylobates_syndactylus__Symphalangus_syndactylus  large black gibbon of Sumatra having the 2nd and 3rd toes partially united by a web

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