Polychaos

Polychaos
Systematics
Domain : Eukaryotes (eukaryota) without rank: Amorphea without rank: Amoebozoa without rank: Tubulinea without rank: Euamoebida Genre : Polychaos
Scientific name
Polychaos
Schaeffer , 1926

Polychaos is a genus of bare, amoeboid unicellular organisms from the Euamoebida group .

features

The species of the genus can actively move, they are usually polypodial, so make many pseudopodia (pseudopodia) to move out, only occasionally monopodial, then with a bulbous UROID . The back of the cell is often characterized by bundled, fused pseudopodia remnants.

The cells are typically 50 to 400 micrometers long. The individual cell nucleus is spherical, egg-shaped or cup-shaped and often contains granules. The cytoplasm contains irregular, disc-shaped, or bipyramidal crystals, sometimes in pairs or groups. Cysts are known of some types .

Distribution and systematics

All kinds of polychaos colonize fresh water. Type species is Polychaos dubium , which was originally placed in the genus Amoeba when it was first described in 1916 and then placed in its own genus in 1926. Types include:

• Polychaos dubium
• Polychaos fasciculatum
• Polychaos annulatum
• Polychaos timidum
• Polychaos nitidubium

proof

Footnotes directly behind a statement cover the individual statement, footnotes directly behind a punctuation mark the entire preceding sentence. Footnotes after a space refer to the entire preceding paragraph.

1. ^ ^{A b c} Andrew Rogerson, David J. Patterson: The Naked Ramicristate Amoebae , In: John J. Lee, GF Leedale, P. Bradbury (Eds.): An Illustrated Guide to the Protozoa . tape 2 . Allen, Lawrence 2000, ISBN 1-891276-23-9 , pp. 1040-1041 .