The silicoflagellate species Dictyocha antarctica Lohmann, Dictyocha crux Ehrenb. and the diatom species Nitzschia rectilonga Takano are reported for the first time from the coastal waters of the north-eastern Sea of Marmara (lat. 40º ` N - 40º ` N, long. 28º ` E - 29º ` E) and also from the coastal waters of Turkey. | New records of the Dictyocha antarctica Lohmann, Dictyocha crux Ehrenberg and Nitzschia rectilonga Takano species from the sea of Marmara