A Contribution to the Knowledge of Dinoflagellates from Bohemia

From the territory of Bohemia the author mentions 25 species and 8 lower taxa of dinoflagellates. Newly described was the species Katodinium polyplastidum from peat-bogs from the environment of Doksy. The species Gymnodinium rotundatum Klebs, Gymnodinium sp., Wolosz., Gymnodinium traunsteineri Lind., Gymnodinium limitatum Skuja, Gymnodinium irregulare Christen have been merged and placed in the species Gymnodinium uberrimum (Allm.) Kof. et Sw. as a variety.