Phyllodocidae

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Phyllodocidae is a family of polychaete worms. Worms in this family live on the seabed and may burrow under the sediment.

Characteristics

Members of the Phyllodocidae are characterised by an eversible pharynx and leaf-like dorsal cirri. The head has a pair of antennae at the front, a pair of ventral palps and a single median antenna known as a "nuchal papilla". There is a pair of nuchal organs and there may or may not be a pair of eyes. The first two or three body segments may be part-fused and bear up to four pairs of tentacular cirri. The remaining body segments each bear leaf-like dorsal and ventral cirri, the dorsal ones being larger. The parapodia are uniramous or biramous, and chaetae are present on all but the first segment.[2]

Genera

The World Register of Marine Species includes the following genera :[1]

References

  1. ^ a b Fauchald, Kristian (2008). Read G, Fauchald K (eds.). "Phyllodocidae Örsted, 1843". World Polychaeta database. World Register of Marine Species. Retrieved 22 July 2017.
  2. ^ Australian Biological Resources Study (2000). Polychaetes & Allies: The Southern Synthesis. Csiro Publishing. p. 145. ISBN 978-0-643-06571-0.

[1]

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Phyllodocidae: Brief Summary

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Phyllodocidae is a family of polychaete worms. Worms in this family live on the seabed and may burrow under the sediment.

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Classification

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Eklof et al (2007) found that "Few of the morphological characters traditionally used in phyllodocid taxonomy agree with the molecular results, and none of the major groupings (Phyllodocinae Orsted, 1843; Eteoninae Bergstrom, 1914 and Notophyllinae Pleijel, 1991) in the reclassification by Pleijel (1991) were present in our analyses. Notably, Notophyllinae has been well supported by morphology and was one of the few major groupings in common among the studies by Eibye-Jacobsen (1993), Orrhage and Eibye-Jacobsen (1998) and Kato and Pleijel (2003). In contrast, our results clearly shows this taxon to be non-monophyletic." Also "The genera Eulalia, Eumida, Protomystides, Pseudomystides, Pterocirrus and Sige form a well-supported group, as does Mystides and Nereiphylla. Another clade with strong support includes Eteone and Paranaitis, although with Eteone nested within a paraphyletic Paranaitis."

Reference

Eklof, Jenny; Pleijel, Fredrik; Sundberg, Per. (). Phylogeny of benthic Phyllodocidae (Polychaeta) based on morphological and molecular data. Molecular Phylogenetics and Evolution. (): -.

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Eklof, Jenny; Pleijel, Fredrik; Sundberg, Per. (2007). Phylogeny of benthic Phyllodocidae (Polychaeta) based on morphological and molecular data. <em>Molecular Phylogenetics and Evolution.</em> 45(1): 261-271.
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Read, Geoffrey, G.B.