CreatureData

Blue-grey worm

Octolasion cyaneum (Savigny in Cuvier, 1826)

Status not recordedworms

The blue-grey worm (Octolasion cyaneum) is a species in the family Lumbricidae, order Crassiclitellata.

No freely licensed photo yet

Quick facts about the blue-grey 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 blue-grey worm live?

Not recorded

Where has it been introduced?

The Global Register of Introduced and Invasive Species lists the blue-grey worm as introduced in 3 countries.

  1. Argentina
  2. Australia
  3. United States

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 blue-grey 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 blue-grey worm classified?

  1. kingdomAnimalia
  2. phylumAnnelida
  3. classClitellata
  4. orderCrassiclitellata
  5. familyLumbricidae
  6. genusOctolasion
  7. SpeciesOctolasion cyaneum (Savigny in Cuvier, 1826)

Synonyms Allolobophora cyanea, Allolobophora cyanea profuga, Allolobophora cyanea stagnalis, Allolobophora cyanea studiosa, Allolobophora studiosa, Enterion cyaneum, Helodrilus kempi, Lumbricus alyattes, Lumbricus cyaneus, Lumbricus stagnalis, Lumbricus stagnilis, Octolasion cyaneum var. armoricum, Octolasium cyaneum, Octolasium cyaneum var. armoricum

Other names and names in other languages (9)
  • Steel-blue wormEnglish
  • Woodland blue wormEnglish
  • Yellow tail wormEnglish
  • Blå ormDanish
  • sinilieroFinnish
  • blåmeitemarkNorwegian Bokmål
  • Gewone geelstaartwormDutch
  • blå meitemakkNorwegian Nynorsk
  • blå daggmaskSwedish

Catalogue of Life

Relatives of the blue-grey worm

Other species in the same genus Octolasion.

White worm

Octolasion lacteum

LumbricidaeNo free photo yet

CompareBlue-grey worm vs White wormBlue-grey worm vs Woodland white wormBlue-grey worm vs Octolasion lacteovicinumBlue-grey worm vs Octolasion montanum

Common questions

Answered only where our data holds the answer.

Is the blue-grey worm an invasive species?

The Global Register of Introduced and Invasive Species lists the blue-grey worm as introduced in 3 countries: Argentina, Australia and United States, but does not flag it as invasive in any of them.

What kind of animal is the blue-grey worm?

The blue-grey worm (Octolasion cyaneum) belongs to the family Lumbricidae in the order Crassiclitellata.

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). Blue-grey worm (Octolasion cyaneum). Retrieved from https://creaturedata.com/animals/blue-grey-worm

MLA

“Blue-grey worm (Octolasion cyaneum).” CreatureData, 2026, https://creaturedata.com/animals/blue-grey-worm.

BibTeX
@misc{blue_grey_worm_2026,
  title = {Blue-grey worm (Octolasion cyaneum)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/blue-grey-worm},
  note = {Data as of 2026-11-14}
}