CreatureData

Rock worm

Marphysa sanguinea (Montagu, 1813)

Status not recordedworms

The rock worm (Marphysa sanguinea) is a species in the family Eunicidae, order Eunicida.

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Quick facts about the rock 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 rock worm live?

Not recorded

Is the rock 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 rock worm classified?

  1. kingdomAnimalia
  2. phylumAnnelida
  3. classPolychaeta
  4. orderEunicida
  5. familyEunicidae
  6. genusMarphysa
  7. SpeciesMarphysa sanguinea (Montagu, 1813)

Synonyms Eunice sanguinea, Leodice opalina, Marphysa iwamushi, Marphysa iwamusi, Nereis sanguinea

Other names and names in other languages (5)
  • Red rock wormEnglish
  • Red-gilled marphysaEnglish
  • BlutkieferwurmGerman
  • イワムシJapanese
  • BloedwormDutch

Catalogue of Life

Relatives of the rock worm

Other species in the same genus Marphysa.

CompareRock worm vs Marphysa acicularumRock worm vs Marphysa aegyptiRock worm vs Marphysa aeneaRock worm vs Marphysa americana

Common questions

Answered only where our data holds the answer.

What kind of animal is the rock worm?

The rock worm (Marphysa sanguinea) belongs to the family Eunicidae 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). Rock worm (Marphysa sanguinea). Retrieved from https://creaturedata.com/animals/rock-worm

MLA

“Rock worm (Marphysa sanguinea).” CreatureData, 2026, https://creaturedata.com/animals/rock-worm.

BibTeX
@misc{rock_worm_2026,
  title = {Rock worm (Marphysa sanguinea)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/rock-worm},
  note = {Data as of 2026-11-14}
}