Helmet water flea
| Helmet water flea | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Daphnia cucullata | ||||||||||||
| GO Sars , 1862 |
The helmet water flea ( Daphnia cucullata ) is a type of cancer from the genus Daphnia ( Daphnia ).
It becomes 1 to 2 millimeters long. The body is strongly compressed at the sides and very transparent. The head armor has a pointed tip that is pulled back. The head is helmet-shaped. There is no nauplius eye . The rostrum is rounded and short. The antennae of the first antennae are as long or longer than the tip of the rostrum.
Daphnia cucullata occurs in lakes, as a dwarf form also in ponds. The species is an open water inhabitant and an essential part of the animal plankton of large lakes.
supporting documents
- Heinz Streble , Dieter Krauter : Life in a drop of water. Microflora and microfauna of freshwater. An identification book. Franckh-Kosmos Verlag, Stuttgart 2008, ISBN 978-3-440-11966-2 .