Signal crayfish

Pacifastacus leniusculus
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Family:	Astacidae
Genus:	Pacifastacus
Species:	P. leniusculus
Binomial name
	Pacifastacus leniusculus; (Dana, 1852)

The signal crayfish (Pacifastacus leniusculus) is a North American species of crayfish. It was introduced to Europe in the 1960s to supplement the North European Astacus astacus fisheries, which were being damaged by crayfish plague, but the imports turned out to be a carrier of that disease. The signal crayfish is now considered an invasive species across Europe, Japan, and California, ousting native species there.

^ Cite error: The named reference IUCN was invoked but never defined (see the help page).
^ "Pacifastacus leniusculus (Dana, 1852)". Integrated Taxonomic Information System. Retrieved December 18, 2019.

[IUCN-1] Cite error: The named reference IUCN was invoked but never defined (see the help page).

[2] "Pacifastacus leniusculus (Dana, 1852)". Integrated Taxonomic Information System. Retrieved December 18, 2019.

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Pacifastacus leniusculus

Conservation status
Least Concern (IUCN 3.1)^[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Family:	Astacidae
Genus:	Pacifastacus
Species:	P. leniusculus
Binomial name
*Pacifastacus leniusculus* (Dana, 1852)^[2]