Chaos is a genus of giant amoebae, varying from 1-5 mm in length. They are closely related to Amoeba, and share the same general morphology, producing numerous cylindrical pseudopods. However, Chaos have several hundred nuclei, while Amoeba only have one. The most notable species is C. carolinensis; they have also been classified as Pelomyxa, another giant multinucleate amoeba, but they are not particularly similar.

Chaos feed on bacteria, fungi, other protists and multicellular rotifers. They are heterotrophs like all members of sarcodina, and obtain food energy by ingestion. They are mostly scavengers and are found on the bottom of freshwater habitats.

Chaos move by pseudopodia. They do not have a hard cell wall. The cytoplasm is divided into the endoplasm which is fluid and contains the many nuclei, granules, and food vacuoles, and the ectoplasm which is more viscous and does not contain any granules.

Amoebozoa
Lobosea
Discosea
Flabellinea
Dactylopodida

Paramoebidae (Paramoeba, Korotnevella, Mayorella) · Vexilliferidae (Neoparamoeba, Vexillifera)

Vannellida Vannellidae (Clydonella, Discamoeba, Lingulamoeba, Platyamoeba, Unda, Vannella)
Himatismenida Cochliopodiidae (Cochliopodium)
Thecamoebidae discosean:Dermamoeba other: Sappinia, Thecamoeba
Tubulinea
Arcellinida

Arcellina (Arcella) · Difflugina (Centropyxis, Heleopera, Apodera, Difflugia)

Euamoebida Echinamoebidae (Echinamoeba, Filamoeba, Gephyramoeba, Hartmannella vermiformis)

Leptomyxida (Leptomyxa, Rhizamoeba, Flabellula, Paraflabellula)

Copromyxidae (Copromyxa, Copromyxella)

Tubulinida: Amoebidae (Amoeba, Chaos, Hydramoeba, Metachaos, Polychaos, Trichamoeba) · Hartmannellidae (Glaeseria, true Hartmannella, Nolandella, Saccamoeba)
Centramoebida Acanthamoebidae (Acanthamoeba, Comandonia, Protacanthamoeba) · Balamuthiidae (Balamuthia)
Conosa
Archamoebae

Mastigamoebida: Mastigamoeba · Mastigella · Phreatamoeba · non-ciliate (Endolimax, Endamoeba)

Pelobiontida: Pelomyxidae (Pelomyxa) · Entamoebidae/non-cilitate (Entamoeba) · Mastigina

Mycetozoa
Macromycetozoa

Dictyostelid: Dictyostelium · Polysphondylium · Acytostelium

Myxogastria: Liceales (Cribraria, Lycogala, Tubifera, Tubulifera) · Myxogastromycetidae (Echinostelium, Didymium, Fuligo, Lepidoderma, Physarum) · Stemonitida (Comatricha, Stemonitis) · Trichiida (Arcyria, Trichia)

other: Ceratiomyxa

Protosteliales Planoprotostelium · Protostelium
Other Phalansterium · Multicilia
Breviatea Breviata
Other/ungrouped Stereomyxa · Trichosphaerium
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Categories: Amoebozoa |

 

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nucleus jpg
amoeba.ifmo.ru
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[source page]

properties does not seem to be reasonable More probably honeycomb like layer fulfil some regulatory functions in the exchange of the material between the nucleus and the cytoplasm Nuclei of some amoebae species A vesicular nucleus of Saccamoeba limax with fibrous nuclear lamina arrowed in A and B C granular nucleus of Chaos glabrum with honeycomb nuclera

Yahoo Images Search: Chaos (amoeba),
Sun Nov 15 18:07:13 2009