Centropyxis
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| Scientific name | ||||||||||||
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| Stein , 1857 |
Centropyxis is a genus of unicellular , wired amoeba . She belongs to the group of Difflugina .
features
Two different types are described for the cases of the representatives of the Centropyxis : on the one hand, two-sided symmetrical, rounded cases that are flattened towards the front. They are often studded with spines on the sides and back. The mouth opening sits on the belly to the rear and is rounded. The housing is either organic or composed of mineral particles or diatoms. The shape, size and number of the spines are variable. Representatives of this group are mostly found in fresh waters. On the other hand, the housing is circular or elongated as seen from the belly, the mouth region is slightly flattened from the side, the mouth opening is located approximately at the end of the housing. Most of the representatives of this second group can be found in the ground or in drier mosses.
What all species of the genus have in common is that the cell nucleus belongs to the ovular type, i.e. contains numerous nuclear bodies .
Occurrence
Centropyxis are found in fresh water, in peat moss , drier moss and humus soils. They feed on all forms of microorganisms .
Systematics
The genus was first described by Friedrich Stein in 1857 . The type species is Centropyxis aculeata . The genus includes over 130 species and many more sub-taxa, including:
proof
- ↑ a b c d Ralf Meisterfeld: Arcellinida , In: John J. Lee, GF Leedale, P. Bradbury (Ed.): An Illustrated Guide to the Protozoa . tape 2 . Allen, Lawrence 2000, ISBN 1-891276-23-9 , pp. 827-860 .
