ITONAMAN, a small group of tribes of South American In dians, supposed on meagre evidence to constitute an independent linguistic stock. The stock gets its name from the Itonamas, the best known tribe of the group, which occupies a small area in north-eastern Bolivia along the Itonama river (a tributary of the Guapore) from its mouth up as far as the large lake of the same name in lat. 14° S. The Itonamas are a sedentary, agricultural
folk, good canoemen and makers of excellent cotton textiles.