Zooplankton of the open Baltic: Extended Atlas - IOW

Zooplankton of the open Baltic: Extended Atlas - IOW Zooplankton of the open Baltic: Extended Atlas - IOW

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____________________ Plate 4.3.17 Ciliophora, Hypotrichia. 1, 2, Aspidisca turrita, with seven frontoventral and five transverse cirri, adoral zone of membranelles is located near the posterior end (2, arrow), body length 25 μm; 3, 4, Aspidisca turrita, dorsal surface carries characteristic backwardly curving thorn; 5, Stylonychia sp., body shape is atypical for the genus but three distinct caudal cirri (arrows) are seen, body length 47 μm; 6, Stylonychia sp., cyst; 7, Stylonychia mytilus– complex, with three long and distinctly separate caudal cirri, anterior area is notably widened, body length 120 μm; 8, Stylonychia sp., posterior end is narowly rounded, with three indistinctly separate caudal cirri (arrow), body length 95 μm; 9, Stylonychia sp., division, two macronuclear nodules are conspicuous (photos E. Mironova). Photos 1-3: live, DIC; 4: live, PHC; 5-9: live, BF. 114

Plate 4.3.17 115

____________________<br />

Plate 4.3.17<br />

Ciliophora, Hypotrichia. 1, 2, Aspidisca turrita, with seven frontoventral<br />

and five transverse cirri, adoral zone <strong>of</strong> membranelles is located near <strong>the</strong><br />

posterior end (2, arrow), body length 25 μm; 3, 4, Aspidisca turrita, dorsal<br />

surface carries characteristic backwardly curving thorn; 5, Stylonychia sp.,<br />

body shape is atypical for <strong>the</strong> genus but three distinct caudal cirri (arrows) are<br />

seen, body length 47 μm; 6, Stylonychia sp., cyst; 7, Stylonychia mytilus–<br />

complex, with three long and distinctly separate caudal cirri, anterior area is<br />

notably widened, body length 120 μm; 8, Stylonychia sp., posterior end is<br />

narowly rounded, with three indistinctly separate caudal cirri (arrow), body<br />

length 95 μm; 9, Stylonychia sp., division, two macronuclear nodules are<br />

conspicuous (photos E. Mironova).<br />

Photos 1-3: live, DIC; 4: live, PHC; 5-9: live, BF.<br />

114

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