Loukotka (1968) lists Arikapú and Maxubí as separate languages. Arikapú is spoken on the Branco River south of the Tuparí tribe. Maxubí is spoken on the Mequéns River.[2]
Speakers
In 1998, Arikapú was spoken by only six individuals in Rondônia, Brazil, at the headwaters of the Rio Branco. By 2015, Djeoromitxi (2015)[3] reported there were only two remaining speakers, namely the two sisters Nazaré Wadjidjika Arikapu and Nambuika Arikapu.[4]: 27 It is being supplanted by Portuguese.
Phonology
Arikapú alphabet
a
ä
b
d
dj
e
h
i
ï
k
'
m
n
o
p
r
t
tx
u
ü
y
w
Nasalisation is indicated by a tilde on the vowel : ⟨ã ä̃ ẽ ĩ õ ũ⟩.
^Djeoromitxi, A. K. O fortalecimento da língua e cultura Djeromitxi a partir da for-mação dos professores. 2015. 79 f. Monografia (Licenciatura em Educação Básica Intercultu-ral) – Departamento de Educação Intercultural, Universidade Federal de Rondônia (câmpus de Ji-Paraná). 2015.
Lev, Michael; Stark, Tammy; Chang, Will (2012). "Phonological inventory of Arikapú". The South American Phonological Inventory Database (version 1.1.3 ed.). Berkeley: University of California: Survey of California and Other Indian Languages Digital Resource.