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Size [µm]
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Females up to 1500
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Characteristics
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Female individuals have a little, inflexible antennula. Upper rim of valve is arched, small spina.
Lower rims of valves delicately thorned. Prominent polygonal patterning of valves. Large dorsal
indentation between head and carapax. Head rounded, no rostrum. Large compound eye, little nauplius eye.
Antennae with 9 bristles.
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Habitate
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Shoreline of eutrophic little waters and ponds.
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To see images, please click on thumbnails below.
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Images
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Midsummer female.
From the shoreline of a small pond, note a one of parthenogenetic egg.
Green gut. |
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Oblique illumination.
Note the prominent patterning of the carapax valves.
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Polarisation image.
Note the fine thorakopod muscles and the not too strong antenna muscles.
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Female individual with two embryos.
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General informations from: H Streble and D Krauter: Das Leben im Wassertropfen. 8th edition,
Frankh-Kosmos Verlag, Stuttgart 1988
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