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| Collotheca campanulata Dobie 1849 |
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| Collotheca campanulata |
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| Collotheca campanulata, focal plane on the ventral lobees of the corona. |
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| Collotheca campanulata, optical median section. The sensory cilia in the trochus and vestibulum are recognizable (arrowheads). |
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| Collotheca campanulata, focal plane on the dorsal lobe of the corona. At the base the small red eyespot is still visible. |
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| Location: Hattingen, Wodantal, Teich |
| Habitat: submersed plants |
| Date 21.08.2011 |
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