Trans–New Guinea (TNG) is an extensive family of Papuan languages spoken on the island of New Guinea and neighboring islands, a region corresponding to the country Papua New Guinea as well as parts of Indonesia.
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 Nimboran languages are a small family of Papuan languages, spoken in the Grime River and Nawa River watershed in Jayapura Regency, that had been part of Stephen Wurm's Trans–New Guinea proposal. However, when proto-Nimboran pronouns are reconstructed (*genam "I" and kom or komot "thou"), they have little resemblance to the proto-TNG pronouns *na and *ga. Usher places them in a North Papuan stock that resembles Cowan's proposal.
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 Central and South New Guinea languages (CSNG) are a proposed family of Trans–New Guinea languages (TNG). They were part of Voorhoeve & McElhanon's original TNG proposal, but have been reduced in scope by half in the classification of Malcolm Ross. According to Ross, it is not clear if the pronoun similarities between the four remaining branches of Central and South New Guinea are retentions for proto-TNG forms or shared innovations defining a single branch of TNG. Voorhoeve argues independently for an Awyu–Ok relationship, and Foley echoes that Asmat may be closest to Awyu and Ok of the TNG languages. Regardless, the four individual branches of reduced Central and South New Guinea are themselves clearly valid families.
The Pauwasi languages are a likely family of Papuan languages, mostly in Indonesia. The subfamilies are at best only distantly related. The best described Pauwasi language is Karkar, across the border in Papua New Guinea. They are spoken around the headwaters of the Pauwasi River in the Indonesian-PNG border region.
The South Bird's Head or South Doberai languages are three families of Papuan languages. They form part of the Trans–New Guinea languages in the classifications of Malcolm Ross (2005) and Timothy Usher (2020), though Pawley and Hammarström (2018) do not consider them to be part of Trans–New Guinea. However, according to Dryer (2022), based on a preliminary quantitative analysis of data from the ASJP database, South Bird's Head languages are likely to be a subgroup of Trans–New Guinea.
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 Highland Papua, Indonesia. Foley (2003) considers their Trans–New Guinea language group status to be established. They may be most closely related to the languages of Paniai Lakes, but this is not yet clear. Capell (1962) posited that their closest relatives were the Kwerba languages, which Ross (2005) rejects.
The Timor–Alor–Pantar (TAP) languages are a family of languages spoken in Timor, Kisar, and the Alor archipelago in Southern Indonesia. It is the westernmost Papuan language family that survives, and one of two such outlier families in east Nusantara.
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 Mombum languages, also known as the Komolom or Muli Strait languages, are a pair of Trans–New Guinea languages, Mombum (Komolom) and Koneraw, spoken on Komolom Island just off Yos Sudarso Island, and on the southern coast of Yos Sudarso Island, respectively, on the southern coast of New Guinea. Komolom Island is at the southern end of the Muli Strait.
Momuna (Momina), also known as Somahai, is a Papuan language spoken in Yahukimo Regency, Highland Papua and Asmat Regency, South Papua, Indonesia.
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.
The Kolopom languages are a family of Trans–New Guinea languages in the classifications of Stephen Wurm (1975) and of Malcolm Ross (2005). Along with the Mombum languages, they are the languages spoken on Kolepom Island in South Papua, Indonesia.
The West Trans–New Guinea languages are a suggested linguistic linkage of Papuan languages, not well established as a group, proposed by Malcolm Ross in his 2005 classification of the Trans–New Guinea languages. Ross suspects they are an old dialect continuum, because they share numerous features that have not been traced to a single ancestor using comparative historical linguistics. The internal divisions of the languages are also unclear. William A. Foley considers the TNG identity of the Irian Highlands languages at least to be established.
The Demta–Sentani languages form a language family of coastal Indonesian Papua near the Papua New Guinea border.
Morori is a moribund Papuan language of the Kolopom branch of the Trans–New Guinea family. It is separated from the other Kolopom languages by the intrusive Marind family. All speakers use Papuan Malay or Indonesian as L2, and many know Marind.
Uhunduni, also known as Damal (Damal-kal) and Amung (Amung-kal) after two of its dialects, is the language of the Amung people and Damal people. It is a Trans–New Guinea language that forms an independent branch of that family in the classification of Malcolm Ross (2005). However, it is treated as an isolate by Palmer (2018). This language family is also called Ingkipilu in a classification by Anton Moeliono. The word Damal came from the Dani people, while Uhunduni came from the Moni people.
Dem is a divergent Papuan language of West New Guinea. Although Palmer (2018) leaves it unclassified, it was tentatively included in the Trans–New Guinea family in the classification of Malcolm Ross (2005), and Timothy Usher ties it most closely to Amung.
Mor is a nearly extinct Trans–New Guinea language of Indonesia. It is spoken along the Budidi River and the Bomberai River on the Bomberai Peninsula.
