Tondanichthys kottelati is a species of viviparous halfbeak endemic to Indonesia, where it is only known from Lake Tondano near Mount Tondano in the far north of the island of Sulawesi. It grows to a length of 6.4cm (02.5inches) SL. Despite being a member of the viviparous halfbeak family, this species is believed to be oviparous.[1] This species was described in 1995 by Bruce Baden Collette and its species name honours the Swiss ichthyologist Maurice Kottelat.[2]