Gymnodinium is the only genus of naked dinoflagellates found in Lake Kinneret. This genus never forms blooms but occurs quite often in small densities. Like other dinoflagellates, Gymnodinium has 2 unequal flagella, the longitudinal whiplash flagellum is seen in this picture, the second, transverse flagellum is hidden in the transverse groove, or cingulum.
aalster and tzohary
A Alster & T Zohary, Kinneret Limnological Laboratory
Photo taken with an Olympus BX50 Microscope equipped with DIC optics and PixeLink digital camera, mag. X100