The Mairasi languages, also known as Etna Bay are a small independent family of Papuan languages in the classifications of Malcolm Ross and Timothy Usher, that had been part of Stephen Wurm's Trans–New Guinea proposal. They are named after Etna Bay, located in the southeastern corner of West Papua province, in Indonesia.
The Greater Awyu or Digul River languages, known in earlier classifications with more limited scope as Awyu–Dumut (Awyu–Ndumut), are a family of perhaps a dozen Trans–New Guinea languages spoken in eastern West Papua in the region of the Digul River. Six of the languages are sufficiently attested for a basic description; it is not clear how many of the additional names may be separate languages.
The Asmat – Kamrau Bay languages are a family of a dozen Trans–New Guinea languages spoken by the Asmat and related peoples in southern Western New Guinea. They are believed to be a recent expansion along the south coast, as they are all closely related, and there is little differentiation in their pronouns.
The Kaure–Kosare or Nawa River languages are a small family spoken along the Nawa River in West Papua, near the northern border with Papua New Guinea. The languages are Kaure and Kosare.
The Mek languages are a well established family of Papuan languages spoken by the Mek peoples. They form a branch of the Trans–New Guinea languages (TNG) in the classifications of Stephen Wurm (1975) and of Malcolm Ross (2005).
The Dani or Baliem Valley languages are a family of clearly related Trans–New Guinea languages spoken by the Dani and related peoples in the Baliem Valley in the highlands of Papua Province, Indonesia. Foley (2003) considers their TNG status to be established. They may be most closely related to the languages of Paniai Lakes, but this is not yet clear. Capell (1962) had posited that their closest relatives were the Kwerba languages, which Ross (2005) rejects.
Fasu, also known as Namo Me, is one of the Kutubuan languages of New Guinea.
The Timor–Alor–Pantar (TAP) languages are a family of Papuan (non-Austronesian) languages spoken in Timor, Kisar, and the Alor archipelago in Southern Indonesia.
The Duna–Pogaya (Duna–Bogaia) languages are a proposed small family of Trans–New Guinea languages in the classification of Voorhoeve (1975), Ross (2005) and Usher (2018), consisting of two languages, Duna and Bogaya, which in turn form a branch of the larger Trans–New Guinea family. Glottolog, which is based largely on Usher, however finds the connections between the two languages to be tenuous, and the connection to TNG unconvincing.
The Kamula–Elevala languages are a small family of the Trans–New Guinea languages spoken in the region of the Elevala River.
The Gogodala–Suki or Suki – Aramia River languages are a small language family of Papua New Guinea, spoken in the region of the Aramia River. The four language are clearly related.
The Ok languages are a family of about a dozen related Trans–New Guinea languages spoken in a contiguous area of eastern Irian Jaya and western Papua New Guinea. The most numerous language is Ngalum, with some 20,000 speakers; the best known is probably Telefol.
The Kainantu–Goroka language are a family of Papuan languages established by Arthur Capell in 1948 under the name East Highlands. They formed the core of Stephen Wurm's 1960 East New Guinea Highlands family, and are one of the larger branches of Trans–New Guinea in the 2005 classification of Malcolm Ross.
The Engan, or more precisely Enga – Southern Highland languages are a small family of Papuan languages of the highlands of Papua New Guinea. The two branches of the family are rather distantly related, but were connected by Franklin and Voorhoeve (1973).
The Yareban or Musa River languages are a small family of Trans–New Guinea languages spoken near the Musa River in the "Bird's Tail" of New Guinea. They are classified within the Southeast Papuan branch of Trans–New Guinea.
The Manubaran languages are a small family of Trans–New Guinea languages spoken around Mount Brown in the "Bird's Tail" of New Guinea. They are classified within the Southeast Papuan branch of Trans–New Guinea.
The Koiarian languages Koiari are a small family of Trans–New Guinea languages spoken in the "Bird's Tail" of New Guinea. They are classified within the Southeast Papuan branch of Trans–New Guinea.
The Finisterre–Huon languages comprise the largest family within the Trans–New Guinea languages (TNG) in the classification of Malcolm Ross. They were part of the original TNG proposal, and William A. Foley considers their TNG identity to be established. The languages share a small closed class of verbs taking pronominal object prefixes some of which are cognate, strong morphological evidence that they are related.
Foi, also known as Foe or Mubi River, is one of the two East Kutubuan languages of the Trans-New Guinea family spoken along Lake Kutubu and Mubi River, located in the Southern Highlands Province of Papua New Guinea. Dialects of Foi are Ifigi, Kafa, Kutubu, Mubi. A Swadesh list for the Foi language was documented by The Rosetta Project in 2010. The estimated number of Foi speakers as of 2015 is between 6,000 and 8,000.
The Boazi languages, also known as the Lake Murray languages, are a pair of languages in the Trans–New Guinea family, spoken near Lake Murray. They were previously classified in the Marind branch.
