Gey [guv] (Gewe, Gueve) is listed in E16/E17/E18 as a separate Adamawa language in Cameroon. But this language is attested with numerals in H. Baudelaire 1944 which shows it to be the same language as Duli [duz], attested in H. Baudelaire 1944 and Strümpell, F. 1922-1923 . So the Gey [guv] entry duplicates Duli [duz]. A curiousity is that the numerals of this Duli-Gey language resemble numerals of the Bata group of Chadic while the rest of the vocabulary shows good resemblances to the Leko-Nimbari subgroup of Adamawa. I wish to thank Roger Blench and Richard Gravina for discussion of this vocabulary.
See also: Duli-Gewe [duz].