Lake Tritonis (Greek: Τριτωνίδα λίμνην) was a large body of fresh water in North Africa that was described in many ancient texts. Classical-era Greek writers placed the lake in Ancient Libya. In details of the late myths and personal observations related by these historians, the lake was said to be named after Triton. According to Herodotus it contained two islands, Phla, which the Lacedaemonians were to have colonized, according to an oracle, and Mene.