Koma language
The Koma language is a language cluster belonging to the Duru branch of Savanna languages of Cameroon. Blench includes three varieties separated in Ethnologue, Koma Ndera, Gɨmne, and Gɨmnɨme; within Koma Ndera, speakers of the marginal dialects, Gomnome and Ndera, can scarcely understand one another, though both understand the central dialect, Gomme.Varieties
Blench lists these language varieties as part of the Koma cluster.