Fishes Class Actinopterygii Woodward, 1891 - ray-finned fishes see Clade Actinopterygii Woodward 1891 [Moore & Near 2020] Order Osmeriformes Regan, 1913 - freshwater smelts Family Retropinnidae Gill, 1862 - New Zealand smelts 1 Subfamily Retropinninae Gill, 1862 - southern smelts 2 Subfamily Prototroctinae Hubbs, 1952 - southern graylings