Zooplankton of the open Baltic: Extended Atlas - IOW

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Plate 4.3.18
Ciliophora, Hypotrichia. 1, Histriculus vorax, with large adoral zone of
membranelles and two macronuclear nodules, body length 210 μm; 2,
Histriculus vorax, posterior body end is broadly rounded and notched (arrow);
3, Sterkiella histriomuscorum, with short inconspicuous caudal cirri (arrow)
and contractile vacuole located in the mid-body, body length 105 μm; 4, 5, 6,
Oxytricha setigera, with inconspicuous caudal cirri (4, arrows), dorsal cilia (5,
arrow) and contractile vacuole located in mid-body between two
macronuclear nodules (6, arrows), body length 38 μm; 7, 8, Tachysoma
pellionellum, with contractile vacuole located in mid-body (7, arrow) and stiff
dorsal cilia (8, arrow), body length 65 μm; 9, 10, Unidentified ciliate, body
length 70 μm (photos E. Mironova).
Photos 4-6: live, DIC; 1, 3, 7-10: live, BF; 2: live, PHC.
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