Mumeng language
Mumeng is a dialect chain of the Austronesian family in Morobe Province, Papua New Guinea. Dambi–Kumalu and Patep–Zenag–Gorakor have a degree of mutual intelligibility. Kapin may belong as well.

Phonology 
The following is of the Patep dialect:

Consonants 

 The prenasal affricate /ⁿdz/ may also fluctuate to a prenasal fricative [ⁿz] in free variation among speech.
 /ᵐb, ⁿd, ᵑɡ̠/ are heard as prenasal voiceless stops [ᵐp, ⁿt, ᵑk̠] when in word-final positions.
 /k̠/ is mostly heard as a glottal stop [ʔ] in word-final positions.
 /l/ may be heard as fricativized [l̝] or more fronted as [l̟] in word-final position.

Vowels

References

Definitely endangered languages
South Huon Gulf languages
Languages of Morobe Province