Spironematellidae
Spironematellidae | |
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Hemimastix amphikineta | |
Scientific classification | |
Domain: | Eukaryota |
Phylum: | Hemimastigophora |
Class: | Hemimastigea |
Order: | Hemimastigida |
Family: | Spironematellidae Silva 1980 emend. Shɨshkin 2022 |
Genera | |
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Synonyms | |
Spironematellidae (previously known as Spironemidae) is a family of heterotrophic flagellates, in the group Hemimastigophora. They vary in size and shape from the ellipsoid Hemimastix amphikineta (14 × 7 μm) to the vermiform Spironematella terricola (43 × 3 μm), and are united by the possession of two rows of cilia, called kineties.
Phylogenomic analysis shows that Hemimastigophora are a distinct and ancient lineage of eukaryotic organisms, forming a possible sister clade to the supergroup Diaphoretickes.
Classification
The classification of Spironematellidae, as of 2022:
- Hemimastix Foissner, Blatterer & Foissner, 1988
- H. amphikineta Foissner, Blatterer & Foissner, 1988
- H. kukwesjijk Eglit & Simpson, 2018
- Stereonema Foissner & Foissner 1993 non Kützing 1836
- S. geiseri Foissner & Foissner 1993
- Spironematella Silva 1970 emend. Shɨshkin 2022 (=Spironema Klebs 1893 non Vuillemin 1905 non Léger & Hesse 1922 non Rafinesque 1838 non Hochst. 1842 non Lindley 1840 non Meek 1864)