E16/E17/E18/E19/E20/E21/E22/E23/E24/E25/E26/E27 has an entry for Tukumanféd [tkf]. It is a presumed Kawahib language earlier spoken on the middle Machado River, but is unattested ( Loukotka, Čestmír 1950: 24 , Čestmír Loukotka 1968: 115 ) and cannot be asserted to have been different from other Kawahib languages.
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Glottolog
[tkf] at ISO 639-3
[tkf] at OLAC
[tkf] at IMTVault
Wikidata