Tube-dwelling anemone
| Tube-dwelling anemones | |
|---|---|
 |
|
| Cerianthus sp. | |
Scientific classification  |
|
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Anthozoa |
| Subclass: | Ceriantharia |
| Order: | Ceriantharia |
| Subgroups | |
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Tube-dwelling anemones or ceriantharians look very similar to sea anemones, but belong to an entirely different subclass of anthozoans. They are solitary, living buried in soft sediments. Tube anemones live and can withdraw into tubes, which are made of a fibrous material, which is made from secreted mucus and threads of nematocyst-like organelles, known as ptychocysts.
Ceriantharians have a crown of tentacles that composed of two whorls of distinctly different sized tentacles. The outer whorl consists of large tentacles that extend outwards. These tentacles taper to points and are mostly used in food capture and defence. The smaller inner tentacles are held more erect than the larger lateral tentacles and are used for food manipulation and ingestion.[1]
Taxonomy
- Suborder Spirularia[2]
- Family Botrucnidiferidae Carlgren, 1912
- Genus Angianthula Leloup, 1964
- Genus Atractanthula Leloup, 1964
- Genus Botracnidifer
- Genus Botruanthus
- Genus Botrucnidiata Leloup, 1932
- Genus Botrucnidifer
- Genus Calpanthula
- Genus Cerianthula Beneden, 1898
- Genus Gymnanthula Leloup, 1964
- Genus Hensenanthula
- Genus Ovanthula
- Genus Sphaeranthula
- Family Cerianthidae Milne-Edwards & Haime, 1852
- Genus Anthoactis Leloup, 1932
- Genus Apiactis Beneden, 1897
- Genus Bursanthus Leloup, 1968
- Genus Ceriantheomorphe Carlgren, 1931
- Genus Ceriantheopsis Carlgren, 1912
- Genus Cerianthus Delle Chiaje, 1830
- Genus Engodactylactis Leloup, 1942
- Genus Isodactylactis Carlgren, 1924
- Genus Nautanthus Leloup, 1964
- Genus Pachycerianthus Roule, 1904
- Genus Paradactylactis Carlgren, 1924
- Genus Parovactis Leloup, 1964
- Genus Peponactis Van Beneden, 1897
- Genus Plesiodactylactis Leloup, 1942
- Genus Sacculactis Leloup, 1964
- Genus Solasteractis Van Beneden, 1897
- Genus Synarachnactis Carlgren, 1924
- Genus Syndactylactis Carlgren, 1924
- Genus Trichactis Leloup, 1964
- Suborder Penicilaria[3]
- Family Arachnactidae McMurrich, 1910
- Genus Anactinia Annandale, 1909
- Genus Arachnactis Sars, 1846
- Genus Arachnanthus Carlgren, 1912
- Genus Dactylactis van Beneden, 1897
- Genus Isapiactis Carlgren, 1924
- Genus Isarachnactis Carlgren, 1924
- Genus Isarachnanthus Carlgren, 1924
- Genus Isovactis
- Genus Ovactis
- Genus Paranactinia
References
- ↑ Brusca, R.C. & Brusca, G.J. 2002. Invertebrates Second Edition Sinauer Associates. ISBN 0-87893-097-3
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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External links
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Wikimedia Commons has media related to Ceriantharia. |
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