Vannellidae
| Vannellidae | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Phylum: | Amoebozoa |
| Subphylum: | Lobosa |
| Class: | Flabellinea |
| Order: | Vannellida |
| Family: | Vannellidae Bovee 1970 |
| Genera | |
|
Clydonella | |
The Vannellidae are a family of Amoebozoa, which are found in freshwater, soil, and salt water.[1][2] The most common genus is Vannella.
Description
Vannellidae tend to be flattened and fan-shaped during motion, although some are long and narrow, and have a prominent clear margin at the anterior.[3] In most amoebae, the endoplasm glides forward through the center of the cell, but vannellids undergo a sort of rolling motion with the outer membrane sliding around like a tank tread. These amoebae are usually 10-40 μm in size, but some are smaller or larger.
Vannellidae are surrounded by an outer covering called the glycocalyx, which is generally 10-20 nm across, though the thickness varies among species. In some species, a layer of hair-like filaments called glycostyles protrudes from the glycocalyx.[2]
Taxonomy
Molecular phylogenies include them in the class Flabellinea as a sister group to the others, which have subpseudopodia.
References
- ↑ Moselio Schaechter, ed. (2011). "Protists". Eukaryotic Microbes. Academic Press. p. 202. ISBN 9780123838773.
- 1 2 Smirnov AV, Nassonova ES, Chao E, Cavalier-Smith T (July 2007). "Phylogeny, evolution, and taxonomy of vannellid amoebae". Protist. 158 (3): 295–324. doi:10.1016/j.protis.2007.04.004. PMID 17602867.
- ↑ "Family Vannellidae Bovee, 1970". Microworld. Retrieved 4 July 2016.