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]

Faxonius peruncus

Critically Imperiled  (NatureServe)[2]
Scientific classification Edit this 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[1]

Distribution

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

Threats

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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

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  1. ^ a b c d 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. ^ a b c d "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.