CreatureData

Pill box crab

Halicarcinus quoyi (H. Milne Edwards, 1854)

Status not recordedcrabs and lobsters

The pill box crab (Halicarcinus quoyi) is a species in the family Hymenosomatidae, order Decapoda.

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Quick facts about the pill box crab

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 pill box crab live?

Not recorded

Where has it been introduced?

The Global Register of Introduced and Invasive Species lists the pill box crab as introduced in 1 country.

  1. Australia

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 pill box crab 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 pill box crab classified?

  1. kingdomAnimalia
  2. phylumArthropoda
  3. classMalacostraca
  4. orderDecapoda
  5. familyHymenosomatidae
  6. genusHalicarcinus
  7. SpeciesHalicarcinus quoyi (H. Milne Edwards, 1854)

Synonyms Elamena quoyi, Elamene quoyi, Halicarcinus huttoni, Halicarcinus innominata, Halicarcinus innominatus

Other names and names in other languages (2)
  • Flat pillbox crabEnglish
  • Flat spider crabEnglish

Catalogue of Life

Relatives of the pill box crab

Other species in the same genus Halicarcinus.

ComparePill box crab vs Flattened crabPill box crab vs Cook's pillbox crabPill box crab vs Three-pronged spider crabPill box crab vs Variable pillbox crab

Common questions

Answered only where our data holds the answer.

Is the pill box crab an invasive species?

The Global Register of Introduced and Invasive Species lists the pill box crab as introduced in 1 country: Australia, but does not flag it as invasive in any of them.

What kind of animal is the pill box crab?

The pill box crab (Halicarcinus quoyi) belongs to the family Hymenosomatidae in the order Decapoda.

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). Pill box crab (Halicarcinus quoyi). Retrieved from https://creaturedata.com/animals/pill-box-crab

MLA

“Pill box crab (Halicarcinus quoyi).” CreatureData, 2026, https://creaturedata.com/animals/pill-box-crab.

BibTeX
@misc{pill_box_crab_2026,
  title = {Pill box crab (Halicarcinus quoyi)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/pill-box-crab},
  note = {Data as of 2026-11-14}
}