Rejection of the species Methanothrix soehngeniiVPand the genus MethanothrixVPas nomina confusa, and transfer of Methanothrix thermophilaVPto the genus MethanosaetaVPas Methanosaeta thermophila comb. nov. Request for an Opinion

We request an Opinion of the Judicial Commission regarding rejection of the species Methanothrix soehngenii^VPHuser, Wuhrmann and Zehnder 1983, 439, and the genus Methanothrix^VPHuser, Wuhrmann and Zehnder 1983, 439, as nomina confusa because their descriptions were based on the characterization of an impure type strain, strain Opfikon^T. We also propose the transfer of Methanothrix thermophila^VPKamagata et al. 1992, 465, to the genus Methanosaeta as Methanosaeta thermophila comb. nov.