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Anisonemidae

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Anisonemidae
Scientific classification Edit this classification
Domain: Eukaryota
Phylum: Euglenozoa
Class: Euglenida
Order: Anisonemida
Cavalier-Smith, 2016[2]
Family: Anisonemidae
Saville Kent, 1880[1]

Anisonemidae is a small family of euglenid algae, with two accepted genera. It is the only family in the order Anisonemida.[2]

Description

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The family consists of single-celled organisms with a larger posterior flagellum by means of which they are able to glide. They are phagotrophic, meaning that they feed by engulfing particles of food, and are non-photosynthetic.[2]

Taxonomy

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The family was established by William Saville-Kent in a work published in 1880–1881.[1][3] Saville-Kent used a much wider circumscription than more recent sources.[3] Historically, phagotrophic euglenids have been treated as animals, and named under the International Code of Zoological Nomenclature,[2] hence the family name ending "-idae".

Genera

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As of May 2023, two genera are accepted:[2]

  • Anisonema Dujardin, 1841
  • Dinema Perty, 1852 (syn. Dinematomonas P.C.Silva, 1960)

A third genus, Heteronema Dujardin, 1841, is listed by some sources.[1] The status of the genus is unclear; it appears to be polyphyletic, with some species falling into the order Peranemida and others in Anisonemida. Many of its species have been transferred into Teloprocta, which is placed in Peranemida.[2]

References

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  1. ^ a b c Anisonemidae Saville Kent, 1880 . Retrieved through: Interim Register of Marine and Nonmarine Genera on 2023-05-21.
  2. ^ a b c d e f Kostygov, Alexei Y.; Karnkowska, Anna; Votýpka, Jan; Tashyreva, Daria; Maciszewski, Kacper; Yurchenko, Vyacheslav & Lukeš, Julius (2021), "Euglenozoa: taxonomy, diversity and ecology, symbioses and viruses", Open Biology, 11 (3): 200407, doi:10.1098/rsob.200407, PMC 8061765, PMID 33715388
  3. ^ a b Saville-Kent, William (1880–1881), "Fam. VIII. Anisonemidae, S.K.", A manual of the infusoria, including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign and an account of the organization and affinities of the sponges, vol. 1, London: David Bogue, pp. 429–438, OCLC 2378093, retrieved 2023-05-21