Ópata (also Tegüima, Teguima, Tehuima, Tehui, Eudeve, Eudeva, Heve, Dohema, Jova, Joval, Tonichi, Sonori and Ure; : Teguima) is either of two closely related Uto-Aztecan languages, Teguima and Eudeve, spoken by the Opata people of northern central Sonora in Mexico and Southeast of Arizona in the United States. It was believed to be dead already in 1930, and Carl Sofus Lumholtz reported the Opata to have become "Mexicanized" and lost their language and customs already when traveling through Sonora in the 1890s. In a 1993 survey by the Instituto Nacional Indigenista fifteen people in the Mexican Federal District self-identified as speakers of Ópata. This may not mean however that the language was actually living, since linguistic nomenclature in Mexico is notoriously fuzzy. Sometimes Eudeve