The Kwomtari–Fas languages, often referred to ambiguously as Kwomtari, are an apparently spurious language family proposal of six languages spoken by some 4,000 people in the north of Papua New Guinea, near the border with Indonesia. The term "Kwomtari languages" can also refer to one of the established families that makes up this proposal.
The Border or Upper Tami languages are an independent family of Papuan languages in Malcolm Ross's version of the Trans–New Guinea proposal.
The Ramu–Lower Sepika.k.a.Lower Sepik–Ramu languages are a proposed family of about 35 Papuan languages spoken in the Ramu and Sepik river basins of northern Papua New Guinea. These languages tend to have simple phonologies, with few consonants or vowels and usually no tones.
The Sepik or Sepik River languages are a family of some 50 Papuan languages spoken in the Sepik river basin of northern Papua New Guinea, proposed by Donald Laycock in 1965 in a somewhat more limited form than presented here. They tend to have simple phonologies, with few consonants or vowels and usually no tones.
The Lower Sepik a.k.a. Nor–Pondo languages are a small language family of East Sepik Province in northern Papua New Guinea. They were identified as a family by K Laumann in 1951 under the name Nor–Pondo, and included in Donald Laycock's now-defunct 1973 Sepik–Ramu family.
The Ramu languages are a family of some thirty languages of Northern Papua New Guinea. They were identified as a family by John Z'graggen in 1971 and linked with the Sepik languages by Donald Laycock two years later. Malcolm Ross (2005) classifies them as one branch of a Ramu – Lower Sepik language family. Z'graggen had included the Yuat languages, but that now seems doubtful.
The Middle Sepik languages comprise diverse groups of Sepik languages spoken in northern Papua New Guinea. The Middle Sepik grouping is provisionally accepted by Foley (2018) based on shared innovations in pronouns, but is divided by Glottolog. They are spoken in areas surrounding the town of Ambunti in East Sepik Province.
The Upper Sepik languages are a group of ten to a dozen languages generally classified among the Sepik languages of northern Papua New Guinea.
The Sepik Hill languages form the largest and most ramified branch of the Sepik languages of northern Papua New Guinea. They are spoken along the southern margin of the Sepik floodplain in the foothills of Central Range of south-central East Sepik Province.
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 Grass languages are a group of languages in the Ramu language family. It is accepted by Foley (2018), but not by Glottolog. They are spoken in East Sepik Province, Papua New Guinea, with a small number of speakers also located just across the provincial border in Madang Province.
The Tama languages are a small family of three clusters of closely related languages of northern Papua New Guinea, spoken just to the south of Nuku town in eastern Sandaun Province. They are classified as subgroup of the Sepik languages. Tama is the word for 'man' in the languages that make up this group.
The Nukuma languages are a small family of three clearly related languages:
The Papi and Asaba languages form a small family of two somewhat distantly related languages of northern Papua New Guinea, namely Papi and Suarmin (Asaba).
Awtuw (Autu), also known as Kamnum, is spoken in Sandaun Province, Papua New Guinea. It is a polysynthetic language closely related to Karawa and Pouye. It is spoken in Galkutua, Gutaiya, Kamnom, Tubum, and Wiup villages in Kamnom East ward, East Wapei Rural LLG, Sandaun Province.
The Mongol–Langam, Koam, or Ulmapo languages are a language group of Keram Rural LLG, East Sepik Province, Papua New Guinea belonging to the Ramu language family. Foley (2018) includes them within the Grass languages, but they were not included in Foley (2005).
The Arafundi languages are a small family of clearly related languages in East Sepik Province, Papua New Guinea. They are conjectured to be related to the Piawi and Madang languages. They are named after the Arafundi River.
The Lower Ramu or Ottilien–Misegian languages consist of two branches in the Ramu language family. They are all spoken in Yawar Rural LLG, Madang Province, Papua New Guinea.
Kambota.k.a.Ap Ma, is a Keram language of Papua New Guinea. Compared to its nearest relative, Ambakich, Kambot drops the first segment from polysyllabic words.
The Wogamus languages are a pair of closely related languages, Wogamusin and Chenapian.
