Video clips

Stephanoceros 1

Stephanoceros 1
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Stephanoceros fimbriatus - Wheel animal in transparent living-tube - a handsome, sessile predator.

Instead of a wheel it has a basket of five tentacles which enables it to catch bigger organisms like wheel animals swimming around.

Stephanoceros 2

Stephanoceros 2
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Stephanoceros fimbriatus - Structure of a trapping basket:

Cilia connected to the arms cross each other to prevent the prey from escaping. Only when it is too huge it is spit off. This peculiar mechanism to trap the prey illustrates impressively how much rotifers can vary.

Stephanoceros 3

Stephanoceros 3
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Stephanoceros fimbriatus - The animal is catching a Dinoflagellate.

The cilia allow the prey to enter the basket, but not to leave it anymore. In addition, the cilia inside the animal are warfting the prey into the mouth cavity where it is swallowed and torn into pieces by strong chewing hooks.