Chrysochromulina brachycylindra sp. nov. (Prymnesiophyceae) from Finnish coastal waters

Chrysochromulina brachycylindra sp. nov. is described by means of transmission electron microscopy of shadowcast whole mounts prepared from wild material collected from Finnish coastal waters. The subspherical cell carries plate-scales and cylinder-scales. The scales are large enough to render possible a light microscopical identification of this species from dry preparations. Based on scale morphology it is evident that C. brachycylindra is closely related to C. pachycylindra Manton, Oates and Course. In addition to the findings from the Baltic Sea the new species is also reported from the Andaman Sea, SW Thailand.