Igarité which means “true canoe” in Tupi language, is the Canoa Indígena (dugout canoe), Casco, Igara or Ubá* added with hull planks held by ribs. According to some research, this is used with paddles or sail.
It developed as a sailing canoe with a mast (or two) during the 17th and 18th centuries with the immigrants in the Amazon. Although sailing either with a sprit or a square sail, it has no keel or centerboard, but a large rudder and a square bow. The Igarité are simple and easy to conduct on rivers with a shallow draft. The larger ones could carry up to 2 tons and some would have a cabin made from straw. They are seen from the Amazon region to the north coast of Brazil, in Maranhão.
A model of Igarité single mast and double mast can be seen below: