Macrodasyida
Macrodasyida is an order of gastrotrichs.[1] Members of this order are somewhat worm-like in form, and not more than 1 to 1.5 mm in length.
| Macrodasyida | |
|---|---|
 | |
| Thaumastoderma ramuliferum (ventral view) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Gastrotricha |
| Order: | Macrodasyida Remane, 1925 [Rao & Clausen, 1970] |
| Families | |
|
See text | |
Macrodasyids are almost in entirely marine and live in the sediment in marine or brackish water, but two species have been discovered in freshwater.[2] They can be distinguished from other gastrotrichs by the presence of two pores on either side of the pharynx, that allow excess water to be expelled during feeding. The body is dorsally flattened and there are tubular adhesive glands at both ends and on the lateral surfaces. These animals are detritivores and are hermaphrodites.[3]
Families
- Cephalodasyidae Hummon & Todaro, 2010
- Dactylopodolidae Strand, 1929
- Hummondasyidae Todaro, Leasi & Hochberg, 2014
- Lepidodasyidae Remane, 1927
- Macrodasyidae Remane, 1924
- Planodasyidae Rao & Clausen, 1970
- Redudasyidae Todaro, Dal Zotto, Jondelius, Hochberg, Hummon, Kanneby & Rocha, 2012
- Thaumastodermatidae Remane, 1927
- Turbanellidae Remane, 1926
- Xenodasyidae Todaro, Guidi, Leasi & Tongiorgi, 2006
References
- Todaro, Antonio (2013). "Macrodasyida". WoRMS. World Register of Marine Species. Retrieved 2014-01-23.
- Todaro, M. A.; Dal Zotto, M.; Jondelius, U.; Hochberg, R.; Hummon, W. D.; Kånneby, T.; Rocha, C. E. (2012). "Gastrotricha: a marine sister for a freshwater puzzle". PLOS ONE. 7 (2): e31740. Bibcode:2012PLoSO...731740T. doi:10.1371/journal.pone.0031740. PMC 3279426. PMID 22348127.
- Ruppert, Edward E.; Fox, Richard, S.; Barnes, Robert D. (2004). Invertebrate Zoology, 7th edition. Cengage Learning. pp. 753–757. ISBN 978-81-315-0104-7.
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