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| Colurella uncinata Mueller 1773 |
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| Colurella uncinata, specimen from (2), lateral view. The posterior part of the lorica tapers into a tip in this species (arrow). |
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| Colurella uncinata, another specimen, lateral view, focus plane on the eyespot and the rostrum. (1) |
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| Colurella uncinata lateral view, contracted specimen, focus plane on the characteristic tapered posterior end of the lorica. (1) |
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| Colurella uncinata same specimen, lateral view; of focal plane on the eyespot and the foot. (1) |
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| Colurella uncinata specimen from (3); the ratio: lorica length vs. lorica height is 1,6; |
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| Location: Gevelsberg, Grünes Klassenzimmer (pond) (1); Hasslinghausen, pond (2); Portsall, Britanny, France, harbour (3) |
| Habitat: Periphyton, detritus (1;2); between algae (3) |
| Date: 2.05.2007; 06.06.2012 (2); 14.08.2018 (3) |
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