Aikana

The Aikanã are an indigenous people of Rondônia in the western Brazilian Amazon, also known as Massacá, Tubarão or Corumbiara. Their tongue is a language isolate of the Guaporé region, spoken in the Tubarão-Latundê lands where they live alongside the unrelated Kwaza people. Their cosmology centers on Kiantô, a giant rainbow-colored serpent that rules over the waters.