Faxonius peruncus

Faxonius peruncus
Conservation status
	; Vulnerable (IUCN 3.1)
	; Critically Imperiled (NatureServe)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Family:	Cambaridae
Genus:	Faxonius
Species:	F. peruncus
Binomial name
	Faxonius peruncus; (Creaser, 1931)
Synonyms
	Orconectes peruncus

Faxonius peruncus, the Big Creek crayfish, is a species of crayfish in the family Cambaridae. It is endemic to Missouri.^[2] The common name refers to Big Creek, where the original specimens were found.^[3]

Distribution

F. peruncus is limited to the St. Francis River watershed.^[1]

Threats

The main threat to this species is a related species, F. hylas which was introduced into the area in 1984. F. hylas out-competes, and hybridises with, F. peruncus.^[2] Also, pollution from the Southeast Missouri Lead District affects the water quality in the local area.^[1]^[2]

References

^ ^1.0 ^1.1 ^1.2 ^1.3 DiStefano, R.; Schuster, G.A. & Taylor, C.A. (2010). "Orconectes peruncus". IUCN Red List of Threatened Species. 2010: e.T15436A4584964. doi:10.2305/IUCN.UK.2010-3.RLTS.T15436A4584964.en. Retrieved 16 October 2022.
^ ^2.0 ^2.1 ^2.2 ^2.3 "Faxonius peruncus". Retrieved 16 October 2022.
^ Crandall, Keith A; De Grave, Sammy (2017). "An updated classification of the freshwater crayfishes (Decapoda: Astacidea) of the world, with a complete species list". Journal of Crustacean Biology. 37 (5): 615–653. doi:10.1093/jcbiol/rux070.

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[IUCN-1] 1.0 ^1.1 ^1.2 ^1.3 DiStefano, R.; Schuster, G.A. & Taylor, C.A. (2010). "Orconectes peruncus". IUCN Red List of Threatened Species. 2010: e.T15436A4584964. doi:10.2305/IUCN.UK.2010-3.RLTS.T15436A4584964.en. Retrieved 16 October 2022.

[NatureServe-2] 2.0 ^2.1 ^2.2 ^2.3 "Faxonius peruncus". Retrieved 16 October 2022.

[3] Crandall, Keith A; De Grave, Sammy (2017). "An updated classification of the freshwater crayfishes (Decapoda: Astacidea) of the world, with a complete species list". Journal of Crustacean Biology. 37 (5): 615–653. doi:10.1093/jcbiol/rux070.

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