CreatureData

Medusa worm

Loimia medusa (Savigny, 1822)

Status not recordedworms

The medusa worm (Loimia medusa) is a species in the family Terebellidae.

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Quick facts about the medusa 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

Where does the medusa worm live?

Not recorded

Where has it been introduced?

The Global Register of Introduced and Invasive Species lists the medusa worm as introduced in 1 country.

  1. Greece

Introduced means brought by people and now present; invasive means the country's checklist records an impact. A species can be native to one part of a country and introduced in another. Source: Global Register of Introduced and Invasive Species (CC BY 4.0).

Is the medusa worm endangered?

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.

How is the medusa worm classified?

  1. kingdomAnimalia
  2. phylumAnnelida
  3. classPolychaeta
  4. familyTerebellidae
  5. genusLoimia
  6. SpeciesLoimia medusa (Savigny, 1822)

Synonyms Axionice medusa, Lanice fauvelii, Loimia variegata, Terebella medusa, Terebella variegata

Other names and names in other languages (8)
  • Medusa spaghetti wormEnglish
  • Spaghetti wormEnglish
  • MedusenwurmGerman
  • Verme spaghetti medusaItalian
  • 괴물유령갯지렁이Korean
  • 義大利麵蟲Chinese
  • Spaghetti-WurmGerman
  • 扁蟄蟲(蛇髮扁蟄蟲)Chinese

Catalogue of Life

Relatives of the medusa worm

Other species in the same genus Loimia.

CompareMedusa worm vs Loimia aimehoensisMedusa worm vs Loimia annulifilisMedusa worm vs Loimia arboreaMedusa worm vs Loimia armata

Common questions

Answered only where our data holds the answer.

Is the medusa worm an invasive species?

The Global Register of Introduced and Invasive Species lists the medusa worm as introduced in 1 country: Greece, but does not flag it as invasive in any of them.

Sources and how to cite this page

Data as of 2026-11-14. How this page is put together.

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APA

CreatureData. (2026). Medusa worm (Loimia medusa). Retrieved from https://creaturedata.com/animals/medusa-worm

MLA

“Medusa worm (Loimia medusa).” CreatureData, 2026, https://creaturedata.com/animals/medusa-worm.

BibTeX
@misc{medusa_worm_2026,
  title = {Medusa worm (Loimia medusa)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/medusa-worm},
  note = {Data as of 2026-11-14}
}