These New Zealand Rugby union teams are now defunct: * Ashburton County (1927–1952) — changed to Mid Canterbury * Bush (1890-1971) — merged into Wairarapa-Bush * Central Vikings (1997–1998) — short-term merger of Hawke's Bay and Manawatu * Golden Bay-Motueka (1920–1967) — merged into Nelson Bays Rugby Union * Manawhenua (1924–1933) — short-term merger of Manawatu and Horowhenua * Marlborough (1888–2005) — merged into Tasman * Nelson (1885–1967) — merged into Nelson Bays Rugby Union with Golden Bay-Motuekea Rugby Union * Nelson Bays (1968–2005) — merged into Tasman * North Auckland (1920–1994) — changed to Northland * South Auckland Rugby Union (1909) (1909–1921) — split three ways to Waikato, King Country and Thames Valley * South Auckland Rugby Union (1926) (1926–1955) — change