#genus_Nautilus  type genus and sole recent representative of the family Nautilidae
  supertype:  mollusk_genus__molluskgenu  a genus of mollusks
  member of:  family_Nautilidae
  member:  chambered_nautilus__pearly_nautilus__nautilus  cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions

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