Riantana, or Kimaam, is a language spoken by the Kimaam people on Yos Sudarso Island in South Papua, Indonesia.

Phonology

Riantana phonemic inventory:

Consonants
BilabialDentalAlveolarRetroflexPalatalVelar
Nasalmnŋ
Plosivevoicelessptʈck
voicedbdɟɡ
prenasalᵐbⁿd̪ⁿdᶮɟᵑɡ
Fricativeβɣ
Trillr
Glidewj
Vowels
FrontCentralBack
Closeiu
Close-midəo
Open-midɛɔ
Opena