Guaycurus

Guaycurus, South American Indians, whose territory lies mainly in that part of Gran Chaco, between the Paraguay and the Pilcomayo rivers, which, since 1876, has been included in the republic of Paraguay. Tribes of this name are also met in the province of Matto Grosso, Brazil, and the people of Paraguay apply the term Guaycuru in a general way to all the Tobas and Lenguas, who constitute a large section of the wild tribes of Gran Chaco. All are probably branches of the Guarani family.