CreatureData

Opal worm

Arabella iricolor (Montagu, 1804)

Status not recordedworms

The opal worm (Arabella iricolor) is a species in the family Oenonidae, order Eunicida.

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Quick facts about the opal 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 opal worm live?

Not recorded

Is the opal 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 opal worm classified?

  1. kingdomAnimalia
  2. phylumAnnelida
  3. classPolychaeta
  4. orderEunicida
  5. familyOenonidae
  6. genusArabella
  7. SpeciesArabella iricolor (Montagu, 1804)

Synonyms Arabella dubia, Arabella iricolor, Arabella lagunae, Arabella longicirrata, Arabella maculata, Arabella opalina, Arabella quadristriata, Arabella setosa, Aracoda iricolor, Aracoda iricolor caerulea, Aracoda moebiana, Drilonereis pinnata, Lumbriconereis longissima, Lumbriconereis opalina, Lumbriconereis quadristriata, Lumbriconereis splendida, Lumbrinereis st-hilaryi, Lumbrinereis tricolor, Lumbrineris dubia, Lumbrineris gigantea, Lumbrineris maculata, Lumbrineris tricolor, Maclovia gigantea, Maclovia iricolor, Maclovia iricolor capensis, Nereis iricolor, Nereis tricolor, Notocirrus margaraticeus, Notocirrus margaritaceus, Notocirrus tricolor, Oenone maculata

Other names and names in other languages (4)
  • Iridescent wormEnglish
  • OpalwurmGerman
  • セグロイソメJapanese
  • 홍점갯지렁이Korean

Catalogue of Life

Relatives of the opal worm

Other species in the same genus Arabella.

CompareOpal worm vs Arabella pulvinataOpal worm vs Arabella robustaOpal worm vs Arabella ampulliformisOpal worm vs Arabella aracaensis

Common questions

Answered only where our data holds the answer.

What kind of animal is the opal worm?

The opal worm (Arabella iricolor) belongs to the family Oenonidae in the order Eunicida.

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). Opal worm (Arabella iricolor). Retrieved from https://creaturedata.com/animals/opal-worm

MLA

“Opal worm (Arabella iricolor).” CreatureData, 2026, https://creaturedata.com/animals/opal-worm.

BibTeX
@misc{opal_worm_2026,
  title = {Opal worm (Arabella iricolor)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/opal-worm},
  note = {Data as of 2026-11-14}
}