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| Anuraeopsis fissa Gosse, 1851 |
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| Anuraeopsis fissa, specimen with two drop-shaped amictic eggs. The lower egg has been produced earlier, so it is more developed, showing the eyespot and trophi, while the upper (younger) egg is filled with yolk. (2) |
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| Anuraeopsis fissa is characterized by a special membranaceous organ (WEBER organ, arrowheads) in the gap between the dorsal and ventral plates , which is a special aid for carrying the eggs.(2) |
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| Anuraeopsis fissa is a plankton species; here under the coverslide together with Trachelomonas verrucosa and Gonium pectorale. Sometimes the animals are colonized by sessile euglenoid flagellates, e.g. Colacium sp. (2). |
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| Anuraeopsis fissa, carrying a resting egg, which is characterized by a durable shell. On the left side of the shell is a zooflagellate as epibiont. |
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| Anuraeopsis fissa, another specimen from (1), dorsoventral view. |
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| Anuraeopsis fissa, another specimen from (1), WEBER-organ. |
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| Anuraeopsis fissa, malleate trophi |
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| Location: Gevelsberg, Grünes Klassenzimmer (pond (1) |
| Habitat: plankton |
| Date: 3.6.2006 (1); |
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