Red thread worm

Weight

Not recorded

Length

Not recorded

Lifespan

Not recorded

Main food

Not recorded

Habitat

Not recorded

Young per litter or clutch

Not recorded

Conservation status

Not recorded

Countries on record

Not recorded

Not recorded

No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.

1. kingdomAnimalia
2. phylumAnnelida
3. classPolychaeta
4. familyCapitellidae
5. genusHeteromastus
6. SpeciesHeteromastus filiformis (Claparède, 1864)

Synonyms Ancistria capillaris, Ancistria minima, Areniella filiformis, Capitella costana, Capitella filiformis, Capitella fimbriata, Heteromastis filiformis, Notomastus filiformis, Notomastus laevis

Catalogue of Life

CompareRed thread worm vs Heteromastus caudatusRed thread worm vs Heteromastus filobranchusRed thread worm vs Heteromastus giganteusRed thread worm vs Heteromastus gusipoensis

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@misc{red_thread_worm_2026,
  title = {Red thread worm (Heteromastus filiformis)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/red-thread-worm},
  note = {Data as of 2026-11-14}
}