Faxonius peruncus

Faxonius peruncus
Conservation status
Vulnerable  (IUCN 3.1) [1]
Critically Imperiled  (NatureServe) [2]
Scientific classification
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 [1]

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. 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. "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 .