 Apurinã is a Portuguese word used to describe the Popikariwakori people and their language (Facundes 34, 2000).Apurinã indigenous communities are predominantly found along the Purus River, in the Northwestern Amazon region in Brazil, in the Amazonas state (Pickering 2, 2009).Its population is currently spread over twenty-seven different indigenous lands along the Purus River (Apurinã PIB).