Fig. 6.

Microforests living on hydrozoans at scanning electron microscope; recolored pictures. (a) Two microbial morphotypes, one horseshoe shaped (green) and another one fusiform (red), living on the bared epidermis of Ectopleura crocea. (b–c) Portion of the hydrotheca of Clytia linearis (b) almost completely covered by the diatom Cocconeis pseudonotata (c). (d–f) Sessile ciliated of the genus Vorticella settled on the thecal margin of Aglaophenia kirkenpaueri. (g) Foraminifers living on cauli of Eudendrium armatum. (h–i) A dense assemblage of suctorians settled on a colony of Eudendrium racemosum. (j) Hydrotheca of Aglaophenia tubiformis covered by the coralline alga Hydrolithon cf. farinosum. (k) Juvenile of Mytilus galloprovincialis on Eudendrium racemosum. Scale bars: (a, c, f) 10 μm; (b, d) 200 μm; (e) 50 μm; (g–h) 1 mm; (i) 20 μm; (j) 100 μm; (k) 500 μm