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Polychaeta

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Polychaeta

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Also known as bristle worms

Polychaeta () is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia which bear many chitinous bristles called chaetae, hence their name.

AI overview

Polychaetes, commonly known as bristle worms, are marine annelid worms where each body segment features a pair of fleshy protrusions equipped with many chitinous bristles that give these creatures their distinctive appearance and name. These worms are found throughout the world's oceans and play important roles in marine ecosystems as they burrow in sediments, feed on organic matter, and serve as food for larger marine animals.

AI-generated from the Wikipedia summary — may contain errors.

Species

bristle worms

Animalia

KINGDOM

  1. KingdomAnimalia
  2. PhylumAnnelida
  3. ClassPolychaeta
Habitatmarine, brackish, freshwater
Observations recorded3,012,139,120

via GBIF

Research

3,822 papers

via PubMed

Described at

The Worm That Survived Multiple Apocalypses

The Worm That Survived Multiple Apocalypses: A riddle wrapped in a question mark

nautil.us

Link to a page describing this subject · 10,849 chars · not written by Vinony

Wikidata facts

Image
Libr0409.jpg
Show 4 more facts
Commons category
Polychaeta
taxon name
Polychaeta
taxon common name
mnogoščetinci
Sources (6)

via Wikidata · CC0

~15 min read

Article

11 sections
Contents
  • Description
  • Physiology
  • Ecology
  • Reproduction<span class="anchor" id="Epitoky"></span><span class="anchor" id="Epitoke"></span>
  • Evolution
  • Taxonomy and systematics
  • See also
  • References
  • Bibliography
  • Notes
  • External links

Polychaeta () is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia which bear many chitinous bristles called chaetae, hence their name.

More than 10,000 species have been described in this diverse and widespread class; in addition to inhabiting all of the world's oceans, polychaetes occur at all ocean depths, from planktonic species living near the surface, to a small undescribed species observed through ROV at the deepest region in the Earth's oceans, Challenger Deep. In addition, many species live on the abyssal plains, coral reefs, parasitically, and a few within fresh water.

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