Alternate Names: Güisnay, “Mataco” (pej.), “Mataco Güisnay” (pej.), “Mataco Pilcomayo” (pej.)
Genealogy:
Demographics: 15,000 (1999). Ethnic population: 40,000 (2004 INDEC). 40,000 Wichí Güisnay, Wichí Vejoz and Wichí Nocten.
Language Use: All domains. All ages.
Language Development: Radio programs. Dictionary. Grammar. Bible: 2002.
Nation of Origin: Argentina
Other Comments: Ethnic autonym: Wichí. Traditional religion.