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| A large rotifer, photographed under dark field. |
| A higher magnification view of the same rotifer. Notice the hairs around its face and the red spot on its "forehead" - an infra red sensor. |
| There were swarms of Daphnia (water fleas) in the Tarn. So many that they overloaded the net. Unfortunately, once left in a bottle overnight, my samples were rather the worst for wear. This one was photographed whilst it was still fresh! |
| Another view of a daphnia, this time by dark field. |
| Yet another daphnia. |
| A limited number of Volvox were available. This one was photographed under dark field. The specimen was "swimming" and rotating as it moved around the field of view. A similar sample was observed reproducing. |
| Another Volvox. |
| Two species of desmid. The one that looks like a gherkin is Netrium. The one that looks more like a cucumber is closterium. |
| This is another example of Closterium. |