Language name and locationː Korúbo, Amazonas state, Brazil [Refer to Ethnologue]

语言名称和分布地区: 科鲁博语, 巴西西北部亚马逊州伊图依河流域热带雨林野猪谷原住民领地塔拉瓦卡村和塔帕拉雅村  

1. epapa

2. labëtpa  

3. mëkëntet

4. iwa

5. mëkën or mëpuku  

Linguist providing data and dateː Dr. Sanderson Oliveira, University of Brazil (Laboratório de Línguas Indígenas (LALI) do Instituto de Letras (IL) da Universidade de Brasília), Brazil, June 26, 2014.

提供资料的语言学家: Dr. Sanderson Oliveira, 2014 年 6 月 26 日

Other comments: Korúbo or Corubo, Caceteiro, Kaniwa is spoken by approximately 140 speakers in Talawaka and Tapalaya villages, Terra Indígena Vale do Javari; Ituí river, Amazonas state, Brazil.

Korúbo language has only numbers 1, 2 and 3. After this, they use ''a lots''.

Notesː

1 - In the Panoan Family just the number two is reconstruable to the Proto-Páno. The term to express 'two" is rabë (ë is high central vocal). This number maybe come to the expression "help" or "make in two (hacer a dos)".

2 - The cognates of the number "one" in Korúbo there exist just in Matis and Korúbo and is absent in Mayorúna language (this is the closest languages in the family). In other Panoan languages, there exist something like wësti.
3 - The number 3 is building with the terms mëkën "finger" and a quantifier that express something as "this much (esse tanto)" tet. The word is mëkëntet, Maybe it's a lexicalized word. 

4 - After three, generally they use "a lot" iwa, but it's possible that they use something like labëtpa labëtpa "four". Also they can use mëpoko to the number five or something like mëpoko ikek lavëtpa to seven, or mëpoko atxuwëx tet to "ten" (lit. All the hands, this much). They also can use something like "All the hands and All the feet" to twenty. 

5 - I think the Korubo numbers are 1, 2 and 3. After this, they use "a lot", They have some strategies to express some notions like 5, 6, 7, 8, 9, 10, etc., but always they will make a complex math with the basic terms. It's important to note that they have a "ordinal number" for 'first' punkinkin, but I still don't know how I can analyze it and if I really can. 

Note: (ë = IPA 'ə')