Language name and locationː Rikbaktsa, Mato Grosso, Brazil [Refer to Ethnologue]

语言名称和分布地区: 里克巴克查语, 巴西西部马托格罗索州和西北部亚马逊州热带雨林

1.  ʃtuba

2.  petok

3. -haɾakəkbɨi (lit. “private of partner”)

Linguist providing data and dateː Dr. Léia de Jesus Silva, Indigenous languages Lab (Laboratório de Línguas Indígenas da Brazil), University of Brazil, Brazil, July 20, 2010.

提供资料的语言学家: Dr. Léia de Jesus Silva, 2010 年 7 月 20 日.

Other comments: Rikbaktsa or Aripaktsá is an endangered language with 40 speakers left within 1,200 ethnic population in Mato Grosso and Amazonas states: confluence of Sangue and Juruena rivers, Japuira on the east bank of the Juruena between Arinos and Sangue rivers; Posto Escondido on Juruena west bank 700 km north. 9 villages, 14 settlements.

In Rikbaktsa, the numerals are names (or nominalizations) or postpositional phrases, like ‘5’, and they have nominal morphology. I do not target the data, but I can do it if you need. In fact, only the form of '1 'and '2' are commonly used, for other forms (3, 4, 5, 6 etc) the speakers use the forms that I put in frame or the form tsirubaĩ-tsa/ra/na ‘the ones are many’.