| Tintinnidium fluviatile, a planktonic ciliate with a relative soft lorica. (3) |
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| Tintinnidium fluviatile: same specimen as above; upper image:the arrow points to the anlage for the new daughter oral apparatus, indicating that this specimen is dividing. Lower imge: crop. (3) |
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| Tintinnidium fluviatile: another specimen from (1) |
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| Tintinnidium fluviatile: when disturbed, the ciliate either retracts into the lorica (as shown in these images, or it may leave the lorica (see image below); focus plane on the stalk with which the ciliate is attached to the lorica. (2) |
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| Tintinnidium fluviatile: swimming specimen. Focus plane on the oral apparatus. (2) |
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| Tintinnidium fluviatile may be confused with Codonella cratera, which also has a lorica, but which looks amphora-like. C. cratera has 2 macronulei, whereas T. fluviatile has only 1. |
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| Location: Gevelsberg, Grünes Klassenzimmer; pond(1); (2); Sprockhövel, Schee, pond (3) |
| Habitat: plankton (1;2;3) |
| Date: 03.06.2006 (1); 24.03.2010 (2); 13.02.2011 (3) |
