The Northland mudfish (Neochanna heleios, heleios meaning marsh dwelling, neochanna meaning compound word of neo for new and channa for anchovy) is a galaxiid of the genus Neochanna, found only in swampy locations west of the Bay of Islands in Northland, New Zealand. Its length is up to 134 mm. References NIWA June 2006 Royal Society of NZ Northland mudfish Endemic freshwater fish of New Zealand Fish of the North Island Northland mudfish