| Didinium nasutum: in contrast to Monodinium balbiani (which has a single ciliary girdle) this species has two ciliary girdles : anterior and posterior (arrowheads). The small triangles mark the extrusomes in the probiscis. Ma: macronucleus; KV: contractile vacuole. Specimen from (2) |
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| Didinium nasutum: focus plane on the dorsal brush (DB) . Specimen from (3) |
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| Didinium nasutum: same specimen; focus plane on the macronucleus (ma). |
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| Nasentierchen (Didinium nasutum): specimen from (1) |
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| Location: Gevelsberg, Grünes Klasenzimmer, Teich (1); Hasslinghausen, bikepath, pond (2); Kemnader See, Bochum, billabong (3) |
| Habitat: Plankton (1); (2); (3) |
| Date: 30.05.2009 (1); 11.03.2011 (2); 11.02.2020 (3) |
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