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Rhoicosphenia curvata



caption Cells flexed (bent wedge shape) in girdle view, sometimes attached by mucilage pads at the basal pole. Asymmetrical, heteropolar (with apices of different shapes) in valve view. 10 – 75 μm long, 3-8 μm wide. One concave valve, the other convex. The concave valve possesses a raphe that extends almost the length of the valve. The convex valve possesses short raphe branches near apices. Single H-shaped chloroplast with a thin central pyrenoid. Common in lotic systems or along the shores of lakes. Epiphytic in electrolyte-rich to brackish waters. Pollution-tolerant, found across a wide range of nutrient concentrations.
author aalster and tzohary
copyright A Alster & T Zohary, Kinneret Limnological Laboratory, IOLR
observation details click here
image notes Photo taken with an Olympus BX50 Microscope equipped with DIC optics and PixeLink digital camera, mag. X100
image sets   Lake Kinneret planktonic life forms