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A bristleworm - Lagis koreni

Lagis koreni

Image www.seasurvey.co.uk - Lagis koreni highlighting pink iridescence and golden anterior chaetae. Image width ca XX cm.
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Distribution map

Lagis koreni recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)

Why do the maps differ?

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Lagis koreni is not listed under any importance categories.

Key identification features Key identification features

  • Body is segmented and up to 5 cm long.
  • White in colour with pink iridescence, red gills, and a red ventral vessel, which is visible owing to the overall transparency of the body.
  • Fifteen segments bear hair-like bristles (chaetae), while the two segments in front of the tail region are without chaetae.
  • The first three segments of the tail have club-like processes on each side pointing inwards across the back.
  • Lives in a smooth conical tube that opens at both ends and is made of sand grains fitted together. Tube is slightly curved and stands upright in the sandy sediment with the narrow end above the surface in a head-down position.
  • If a tube is not present microscopic inspection is required for identification.

Habitat Habitat

  • Lagis koreni is found all around the coasts of the Britain and Ireland.
  • It is also widely distributed offshore in the North Sea and English Channel.
  • Typically found in muddy sands or sandy muds, reaching highest densities in inshore regions.

Species facts Species facts

  • As adults they can occur in densities that may exceed 1000/m².
  • Lagis koreni are an important food source for bottom-dwelling fish like plaice and dab.

Want to read more?

Have a look at the intermediate review.

Sightings Have you seen a a bristleworm? If so please submit your record.