Vegetative pole of the red alga Polysiphonia fibrillosa with epibionts (Cothurnia, a peritrich ciliat, and Licmophora juergensii, an araphid diatom). The filamentous hairs (trichoblasts) occur only in the vicinity of the vegetative pole, i. e. they are short-lived. The indicates 50 µm. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). This image was taken using Zeiss Universal with Olympus C7070 CCD camera.
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