Three new species of polychaete jaw apparatuses from glacio-marine sediments of Cape MelvilleFormation (Lower Miocene) are reconstructed and described: Ophryotrocha antarctica sp.n., Drilonereis polaris sp.n., and Lumbrineris fossilis sp.n. Incomplete jaw apparatuses: Ophryotrocha sp, A and Ophryotrocha sp. B, and isolated jaws of Glycera sp. are also described. Fossil jaw apparatus of juvenile ontogenetic stage of Ophryotrocha Claparede et Metschnikov is here reported for the first time. Comparative analysis of fossil and Recent jaw apparatuses from Antarctic seas is given.