Lewada-Dewara, spoken on Dewala village on Sumogi Island
Adulu (Aturu), also spoken on Sumogi Island
Baramu is somewhat more divergent in vocabulary, but this may reflect language contact rather than divergence in its position within the family. Pronouns are only available for Tirio itself (Makayam).
The moribund language
Abom was once classified as a divergent Tirio language, sharing only an eighth of its lexicon with the others, but it turns out to not belong to the family at all, nor to the Anim family that Tirio is a branch of.[3]
A survey of the Tirio languages can be found in Jore and Alemán (2002).[4]
Phonemes
Usher (2020) reconstructs the consonant inventory as follows:[5]
^Evans, Nicholas (2018). "The languages of Southern New Guinea". In Palmer, Bill (ed.). The Languages and Linguistics of the New Guinea Area: A Comprehensive Guide. The World of Linguistics. Vol. 4. Berlin: De Gruyter Mouton. pp. 641–774.
ISBN978-3-11-028642-7.
^Pawley, Andrew; Hammarström, Harald (2018). "The Trans New Guinea family". In Palmer, Bill (ed.). The Languages and Linguistics of the New Guinea Area: A Comprehensive Guide. The World of Linguistics. Vol. 4. Berlin: De Gruyter Mouton. pp. 21–196.
ISBN978-3-11-028642-7.
Ross, Malcolm (2005). "Pronouns as a preliminary diagnostic for grouping Papuan languages". In
Andrew Pawley; Robert Attenborough; Robin Hide; Jack Golson (eds.). Papuan pasts: cultural, linguistic and biological histories of Papuan-speaking peoples. Canberra: Pacific Linguistics. pp. 15–66.
ISBN0858835622.
OCLC67292782.