| Collotheca campanulata; specimen from (2); lateral view. This rotifer builts a transparent tube by the integument, into which the animal can retract. |
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| Collotheca campanulata; specimen from (1); dorsoventral view. |
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| Collotheca campanulata, focal plane on the ventral lobes of the corona. |
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| Collotheca campanulata, optical median section. The sensory cilia in the trochus and vestibulum are visible (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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| Collotheca campanulata, uncinate trophi of a macerated specimen. |
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| another morphotype of the "Formenkreis" is >>> Collotheca annulata |
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| Location: Hattingen, Wodantal, pond (1); Nature reserve NSG Heiliges Meer; Germany; Großes Heiliges Meer (2) |
| Habitat: submerged plants (1); epibiontic on the submerged leafs of Ranunculus fluitans (together with Floscularia janus). |
| Date 21.08.2011 (1); 30.04.2019 (2) |
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