By Wilhelm Foissner Martin Kreutz
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Extra info for The Sphagnum Ponds of Simmelried in Germany: A Biodiversity Hot-spot for Microscopic Organisms: v. 3
8, 9: Notosolenus lagenos which is 40–50 µm long, is rounded posteriorly and dorsally, while the ventral side is almost flat. When the focus is on the cortex (9), the trailing flagellum and collected (arrowhead) as well as ingested (arrow) bacteria become visible. F – flagellum, LF – leading flagellum, N – nucleus, TF – trailing flagellum. 50 1 CO N 2 3 4 Fig. 1 – 4: Flagellates. 1: Anthophysa vegetans forms clusters of 10 – 60 cells on the end of a flexible, brownish stalk. The globular cells are 8–10 µm across and have two flagella of different length.
1: The about 20 µm long lorica of Trachelomonas mucosa var. hyalina is smooth and colourless. The typical slime coat is not visible in this specimen. 2: Trachelomonas caudata is about 40 µm long and has a blunt spine on the posterior lorica end. 3: The brownish lorica of Trachelomonas hexangularis is 35 µm long and is formed like an elongated hexagon. 4, 5: Trachelomonas superba, which is common in Simmelried, is about 50 µm long and is thus a comparatively large member of the genus. The lorica is covered with numerous minute spines, which are elongated at the lorica’s ends and on the collar (4, arrowhead).
The specimens are 118 µm (2) and 102 µm (3) long and have a longitudinally striated pellicle (4). 5, 6: Phacus orbicularis is about 40 µm long and occurs among floating algae and plants. It has a large, discoidal paramylon grain accompanied by a smaller one (5, arrows). The dorsal side shows a prominent ridge (6, arrowheads). CH – chloroplasts, F – flagellum, N – nucleus. 42 F F N 1 2 4 3 Fig. 1 – 3: Euglenids. Phacus torta from life (1) and in the scanning electron microscope (2, 3). The species is 80 –100 µm long and has a strongly twisted body with a long tail.