Some lexical data recorded as Omok likely represent an extinct Yukaghir language which is missing from E16/E17/E18/E19/E20/E21/E22/E23/E24 ( Irina Nikolaeva 2008 , Tailleur, Olivier Guy 1959 ). There is some uncertainty as to whether the lexical data recorded as Omok represent a Yukaghir variety not intelligible to the other Yukaghiric languages or whether the puzzling items represent misunderstanding and poor transcriptions ( Irina Nikolaeva 2008: 327-328 , Nikolaeva, Irina 2006: 24-25 ). It is only by assuming the former and following the lexical distances lexical distances in Irina Nikolaeva 2008: 327 that we interpret the data as representing a distinct language.