Melanotaenia_lacustris
Lake Kutubu rainbowfish
Species of fish
The Lake Kutubu rainbowfish (Melanotaenia lacustris) is a species of fish in the family Melanotaeniidae. It is also known as turquoise rainbowfish. It is one of 13 fish endemic to Lake Kutubu,[2] a lake found within the Kikori River system in Papua New Guinea.[3]