L1 users: 300 (1976 SIL). 180 Tanimuca. Retuarã more monolingual than Tanimuca. Ethnic population: 1,800 (Crevels 2007).
Amazonas and Vaupés departments: Guacayá and Oiyaka rivers (tributaries of the Mirití-Paraná), Apaporis, Mirití-Paraná, and Popeyaca rivers near mouth of Pira river below Popeyaca.
Tanimuca, Retuarã. Tanimuca and Retuarã are 2 ethnic groups living near each other who speak the same language.
Latin script [Latn].
All work for one rubber hunter.