| Daphnia longispina (1) |
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| Daphnia longispina; frontal view (1) |
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| Daphnia longispina; frontal view; lateral vie. The long body appendages serve as buoyancy devices. (1) |
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| Daphnia longispina; two Philodina citrina rotifers use the carapax of a dead specimen as substrate. |
| Location: Gevelsberg, Grünes Klassenzimmer, pond (1); (2) |
| Habitat: Plankton (1); (2) |
| Date: 16.7.04 (1); 05.06.2009 (2) |
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