According to Greek mythology, Orestes, son of king Agamemnon, built this city as Orestias, at the confluence of the Tonsus (Toundja) and the Ardiscus (Arda) with the Hebrus (Maritza).
The Titicaca Orestias (Orestias cuvieri), also known by its native name Amanto, is a likely extinct freshwater killifish from the genus Orestias, a group of fish which is endemic to the Lake Titicaca and other Altiplano lakes in the Andes.