Genus Retropinna

Rotorua smelt - The New Zealand smelt, New Zealand common smelt, or New Zealand cucumber fish, Retropinna retropinna, is a smelt of the family Retropinnidae, found only in New Zealand at shallow depths in estuaries and rivers.

Australian smelt - Widely distributed through the south eastern part of the Australian mainland.

Tasmanian smelt - The Tasmanian smelt, Retropinna tasmanica, is a small, pelagic freshwater smelt found in lowland streams of Tasmania, Australia.