Faxonius neglectus
species of crustaceans
Faxonius neglectus, a species of freshwater crayfish also known as the ringed crayfish, is native to Central North America, with two major disjunct areas of distribution in the Ozarks and around Nebraska. The species name, Faxonius neglectus, was previously Orconectes neglectus (before this, Faxonius was a subgenus of Orconectes). Faxonius was declared its own genus in 2017 by Crandall & De Grave, as many previously thought Orconectes species were found to not reside in caves (a quality of Orconectes).
Description and ecology
There are two subspecies of F. neglectus: F. neglectus chaenodactylus (also known as the gapped ringed crayfish or the gap-ringed crayfish) and F. neglectus neglectus. F. neglectus has a uniquely marked decapod anatomy, which includes a wide ring on the rostrum in combination with a dark brown wide ring on the dactyl and propodus of the crayfish's chelipeds, ending in bright red/orange. The third maxilliped ends in a scalloped appearance. The color of the carapace can range from a light brown or yellow color, just rear of the cephalic groove, being banded by a dark brown ring.
Evidence of sexual dimorphism has not been observed to be present for this species. Adult carapace length is an average of 32 mm (1.3 in) for males and females. During F. n.
“Faxonius neglectus” enters the record as species of crustaceans. Crown Archives preserves that source wording while asking what Faxonius, neglectus and species can confirm, complicate or overturn.
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“Faxonius neglectus” is worth following because a concise public description often conceals a longer documentary argument. Here, Faxonius, neglectus and species provides the most credible route into that argument.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Oct 31, 2025. The linked authority identifier is Q107078454. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2017.
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This entry incorporates text from “Faxonius neglectus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.