Asplanchna
| Asplanchna | ||||||||||||
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Asplanchna priodontata , female |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Asplanchna | ||||||||||||
| Gutter , 1850 |
Asplanchna (German: sack rotifers ) is a genus from the tribe of rotifers .
description
In Asplanchna there is a strong sexual dimorphism .
female
Depending on the species, the animals are 420 µm-2500 µm in size, blistered omnivores and mostly completely transparent. Your jaws are swung outward to grasp the prey. The feet, intestines and anus are absent, so undigested food is vomited up . Asplanchna have two small red eyes facing the brain . The wheel organ has developed back into a field of eyelashes.
male
The males are only about 300 µm in size, have no digestive system , live only a short time and consist almost entirely of their testicles .
Types (selection)
- Asplanchna priodontata
- Asplanchna brightwelli
- Asplanchna Sieboldi
- Asplanchna girodi
- Aslpanchna multiceps
swell
literature
- Heinz Streble , Dieter Krauter : Life in a drop of water. Microflora and microfauna of freshwater. An identification book. 10th edition. Kosmos, Stuttgart 2006, ISBN 3-440-10807-4 .
Web links
- Aplanchna at Fauna Europaea. Retrieved October 23, 2011