CreatureData

Calico crayfish

Faxonius immunis (Hagen, 1870)

Status not recordedcrabs and lobsters

The calico crayfish (Faxonius immunis) is a species in the family Cambaridae, order Decapoda.

No freely licensed photo yet

Quick facts about the calico crayfish

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 calico crayfish live?

Not recorded

Where has it been introduced?

The Global Register of Introduced and Invasive Species lists the calico crayfish as introduced in 2 countries, and flagged as invasive in 1 of them.

  1. Germanyinvasive
  2. France

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 calico crayfish 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 calico crayfish classified?

  1. kingdomAnimalia
  2. phylumArthropoda
  3. classMalacostraca
  4. orderDecapoda
  5. familyCambaridae
  6. genusFaxonius
  7. SpeciesFaxonius immunis (Hagen, 1870)

Synonyms Cambarus immunis, Cambarus immunis spinirostris, Cambarus immunis var. spinirostris, Cambarus signifer, Faxonius immunis pedianus, Orconectes immunis

Other names and names in other languages (9)
  • Papershell crayfishEnglish
  • rak kalikovýCzech
  • KalikokrebsGerman
  • écrevisse CalicotFrench
  • CalicotrivierkreeftDutch
  • kalikåkräftaSwedish
  • Kaliko-FlusskrebsGerman
  • Kaliko-KrebsGerman
  • écrevisse marbréeFrench

Catalogue of Life

Relatives of the calico crayfish

Other species in the same genus Faxonius.

Rusty

Faxonius rusticus

CambaridaeNo free photo yet

CompareCalico crayfish vs Delcore crayfishCalico crayfish vs Virile crayfishCalico crayfish vs Coldwater crayfishCalico crayfish vs Spring river crayfish

Common questions

Answered only where our data holds the answer.

Is the calico crayfish an invasive species?

In some places. The Global Register of Introduced and Invasive Species flags the calico crayfish as invasive in 1 country: Germany. It lists it as introduced in 2 in all.

What kind of animal is the calico crayfish?

The calico crayfish (Faxonius immunis) belongs to the family Cambaridae 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). Calico crayfish (Faxonius immunis). Retrieved from https://creaturedata.com/animals/calico-crayfish

MLA

“Calico crayfish (Faxonius immunis).” CreatureData, 2026, https://creaturedata.com/animals/calico-crayfish.

BibTeX
@misc{calico_crayfish_2026,
  title = {Calico crayfish (Faxonius immunis)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/calico-crayfish},
  note = {Data as of 2026-11-14}
}