Identity
Unique IDELEMENT_GLOBAL.2.105429
Element CodeAFCJB51040
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVertebrate Animal
IUCNLeast concern
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomAnimalia
PhylumCraniata
ClassActinopterygii
OrderCypriniformes
FamilyLeuciscidae
GenusLuxilus
SynonymsNotropis chrysocephalus(Rafinesque, 1820)
Other Common NamesMéné rayé (FR)
Concept ReferenceRobins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea, and W.B. Scott. 1991. Common and scientific names of fishes from the United States and Canada. American Fisheries Society, Special Publication 20. 183 pp.
Taxonomic CommentsBiochemical analyses support recognition of Luxilus cornutus and L. chrysocephalus as distinct species (Dowling and Moore 1984), though the two species are not reproductively isolated in some localities in a contact zone in northern Illinois, northern Indiana, northern Ohio, southern Michigan, southern Ontario, western New York, and western Pennsylvania (Dowling et al. 1989); see also Gleason and Berra 1993). Dowling and Hoeh (1991) examined mtDNA introgression and found evidence of a more southward position of the contact zone in previous times. The two species differ ecologically and physiologically and there is selection against hybrids; the boundaries of the contact zone may be maintained by an environmentally based selection gradient in the face of considerable levels of gene flow (Dowling and Hoeh 1991).
See Dowling et al. (1992) for information on evolutionary relationships among Luxilus shiners based on mtDNA data. See Powers and Gold (1992) for information on phylogenetic relationships among Luxilus shiners based on an analysis of chromosomal NOR variation. Removed from genus Notropis and placed in genus (formerly subgenus) Luxilus by Mayden (1989) and Coburn and Cavender (1992); this change was adopted in the latest AFS checklist (Robins et al. 1991).
Conservation Status
Rank MethodExpertise without calculation
Review Date2013-01-16
Change Date1996-09-18
Edition Date2007-06-22
Edition AuthorsHammerson, G.
Threat ImpactMedium
Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Number of Occurrences> 300
Range Extent CommentsRange extends from the southern Great Lakes region to the Gulf Coast, between the Appalachians and the Great Plains: Great Lakes and Mississippi River basins, from western New York, southern Ontario, and southeastern Wisconsin, south to Alabama, Louisiana, and eastern Texas; Gulf Coast drainages from Mobile Bay, Georgia and Alabama, to Lake Pontchartrain, Louisiana (Gilbert, in Lee et al. 1980; Page and Burr 1991).
Occurrences CommentsThis species is represented by a large number of occurrences (e.g., see map in Lee et al. 1980).
Threat Impact CommentsNo major threats are known. Local declines presumably have resulted from degradation of stream habitat quality.