Telmatherina wahjui
Telmatherina wahjui is a species of fish in the subfamily Telmatherininae, which is part of the family Melanotaeniidae; the rainbowfishes. It is endemic to Indonesia, where it occurs only in Lake Matano on the island of Sulawesi. It can reach a maximum length of around. This species was described in 1991 by Maurice Kottelat with a type locality of Alaponkepi which is situated at the outlet of Lake Matano.