Polychaos

Polychaos
Scientific classification
Domain:	Eukaryota
Phylum:	Amoebozoa
Class:	Tubulinea
Order:	Euamoebida
Family:	Hartmannellidae
Genus:	Polychaos ; Schaeffer 1926
Type species
	Polychaos dubium; (Schaeffer 1916) Schaeffer 1926

Last updated May 24, 2025

Polychaos is an amoeboid genus in the Amoebozoa group.^[2] Several characters unite the species in this genus. The pseudopods meld at their bases when the organism is moving, and have dorsal, longitudinal ridges. The nucleus is oval or ellipsoidal.^[3]

Classification

Polychaos includes the following species:^[3]

Polychaos annulatum(Pénard 1902) Smirnov & Goodkov 1998
Polychaos dubium (Schaeffer, 1916) Schaeffer 1926
Polychaos fasciculatum(Penard, 1902) Schaeffer 1926
Polychaos nitidubiumBovee, 1970
Polychaos timidumBovee, 1972

Phylogenetic analysis has shown this that genus belongs to the family Hartmannellidae.^[4]

References

↑ Schaeffer, Asa Arthur (1926a). "Taxonomy of the amebas, with descriptions of thirty-nine new marine and freshwater species". Papers from the Department of Marine Biology of the Carnegie Institution of Washington. 24: 115 pp. 12 plates.
↑ "The Amoebae" . Retrieved 2009-06-25.
1 2 Lee, J.J.; Hutner, S.H.; Bovee, E.C., eds. (1985). Illustrated Guide to the Protozoa. Lawrence, Kansas: Society of Protozoologists. pp. ix + 630 pages.
↑ Kamyshatskaya OG, Bondarenko NI, Mesentsev YS, Chistyakova LV, Nassonova ES, Smirnov AV (2020). "Molecular phylogeny of Polychaos annulatum (Amoebozoa, Tubulinea, Euamoebida) shows that genus Polychaos belongs to the family Hartmannellidae". Journal of Eukaryotic Microbiology. 67 (3): 321–326. doi:10.1111/jeu.12782. PMID 31903652. S2CID 209895966.

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[Schaeffer_1926a-1] Schaeffer, Asa Arthur (1926a). "Taxonomy of the amebas, with descriptions of thirty-nine new marine and freshwater species". Papers from the Department of Marine Biology of the Carnegie Institution of Washington. 24: 115 pp. 12 plates.

[urlThe_Amoebae-2] "The Amoebae" . Retrieved 2009-06-25.

[Lee_et_al_1985-3] 1 2 Lee, J.J.; Hutner, S.H.; Bovee, E.C., eds. (1985). Illustrated Guide to the Protozoa. Lawrence, Kansas: Society of Protozoologists. pp. ix + 630 pages.

[Kamyshatskaya2020-4] Kamyshatskaya OG, Bondarenko NI, Mesentsev YS, Chistyakova LV, Nassonova ES, Smirnov AV (2020). "Molecular phylogeny of Polychaos annulatum (Amoebozoa, Tubulinea, Euamoebida) shows that genus Polychaos belongs to the family Hartmannellidae". Journal of Eukaryotic Microbiology. 67 (3): 321–326. doi:10.1111/jeu.12782. PMID 31903652. S2CID 209895966.

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