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Feather Duster Worms

Sabellidae

Sabellidae

provided by wikipedia EN

Sabellidae (feather duster worms) are a family of sedentary marine polychaete tube worms in which the head is mostly concealed by feathery branchiae. Sabellids build tubes out of a tough, parchment-like exudate, strengthened with sand and bits of shell. Unlike the other sabellids, the genus Glomerula secretes a tube of calcium carbonate instead. Sabellidae tend to be common in the intertidal zones around the world. Their oldest fossils are known from the Early Jurassic.[1][2]

Characteristics

Sabellidae (feather duster worm).jpg

Feather-duster worms have a crown of feeding appendages or radioles in two fan-shaped clusters projecting from their tubes when under water. Each radiole has paired side branches making a two-edged comb for filter feeding. Most species have a narrow collar below the head. The body segments are smooth and lack parapodia. The usually eight thoracic segments bear capilliaries dorsally and hooked chaetae (bristles) ventrally. The abdominal segments are similar, but with the position of the capilliaries and chaetae reversed. The posterior few abdominal segments may form a spoon-shaped hollow on the ventral side. Size varies between tiny and over 10 cm (2.5 in) long. Some small species can bend over and extend their tentacles to the sea floor to collect detritus.[3]

Genera

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Sabellid with feathery branchiae extended

The following genera belong to the family:[4]

References

  1. ^ Vinn, O.; Mutvei, H. (2009). "Calcareous tubeworms of the Phanerozoic" (PDF). Estonian Journal of Earth Sciences. 58 (4): 286–296. doi:10.3176/earth.2009.4.07. Retrieved 2012-09-16..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""'"'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
  2. ^ Vinn, O.; ten Hove, H.A.; Mutvei, H. (2008). "On the tube ultrastructure and origin of calcification in sabellids (Annelida, Polychaeta)". Palaeontology. 51 (2): 295–301. doi:10.1111/j.1475-4983.2008.00763.x. Retrieved 2014-06-11.
  3. ^ NIWA Guide to Polychaeta
  4. ^ MarineSpecies.org

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Sabellidae: Brief Summary

provided by wikipedia EN

Sabellidae (feather duster worms) are a family of sedentary marine polychaete tube worms in which the head is mostly concealed by feathery branchiae. Sabellids build tubes out of a tough, parchment-like exudate, strengthened with sand and bits of shell. Unlike the other sabellids, the genus Glomerula secretes a tube of calcium carbonate instead. Sabellidae tend to be common in the intertidal zones around the world. Their oldest fossils are known from the Early Jurassic.

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Classification

provided by World Register of Marine Species
Fabriciinae (corrected spelling, original spelling Fabricinae) is now regarded as a separate family. See Fabriciidae. Thus the nominal subfamily Sabellinae within Sabellidae is currently strictly unneeded. However, Capa et al (2011) in a related study, while broadly supportive of the separation of Fabriciinae and its likely sister relationship to Serpulidae, suggest the classification of Sabellida is not yet finalised.

References

  • Capa, María; Hutchings, Pat; Teresa Aguado, M.; Bott, Nathan J. (2011). Phylogeny of Sabellidae (Annelida) and relationships with other taxa inferred from morphology and multiple genes. Cladistics. 7(5): 449–469.
  • Huang, Danwei; Fitzhugh, Kirk; Rouse, Greg W. (2011). Inference of phylogenetic relationships within Fabriciidae (Sabellida, Annelida) using molecular and morphological data. Cladistics. 27(4): 356-379.
  • Kupriyanova, Elena K.; Rouse, Greg W. (2008). Yet another example of paraphyly in Annelida: Molecular evidence that Sabellidae contains Serpulidae. Molecular Phylogenetics and Evolution. 46(3): 1174-1181.

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bibliographic citation
Capa, María; Hutchings, Pat; Teresa Aguado, M.; Bott, Nathan J. (2011). Phylogeny of Sabellidae (Annelida) and relationships with other taxa inferred from morphology and multiple genes. <em>Cladistics.</em> 7(5): 449–469. Huang, Danwei; Fitzhugh, Kirk; Rouse, Greg W. (2011). Inference of phylogenetic relationships within Fabriciidae (Sabellida, Annelida) using molecular and morphological data. <em>Cladistics.</em> 27(4): 356-379. Kupriyanova, Elena K.; Rouse, Greg W. (2008). Yet another example of paraphyly in Annelida: Molecular evidence that Sabellidae contains Serpulidae. <em>Molecular Phylogenetics and Evolution.</em> 46(3): 1174-1181.
i18n: Contributor
Read, Geoffrey, G.B.