Ictalurus
genus of fishes
Ictalurus is a genus of North American freshwater catfishes. It includes the well-known channel catfish (Ictalurus punctatus) and blue catfish (Ictalurus furcatus).
The catfish genome database (cBARBEL) is a database for the genetics of Ictalurus species.
Distribution
Members of this genus are primarily found in the Mississippi River basin & peninsular Florida, and range south to southern Mexico, where several range-restricted species are known. Some species, such as the channel and blue catfish, have been introduced to parts of North America west of the Rocky Mountains and east of the Appalachian Mountains, where they are otherwise not native. However, the fossil species Ictalurus countermani, known from the Miocene of Maryland, suggests that this genus did naturally inhabit the Atlantic-draining rivers east of the Appalachians during the Neogene.
Species
Currently, 11 species in this genus are recognized:
Ictalurus australis (Meek, 1904) (Panuco catfish)
Ictalurus balsanus (D. S. Jordan & Snyder, 1899) (Balsas catfish)
Ictalurus dugesii (T. H. Bean, 1880) (Lerma catfish)
Ictalurus furcatus (Valenciennes, 1840) (blue catfish)
Ictalurus lupus (Girard, 1858) (headwater catfish)
Ictalurus meridionalis (Günther, 1864) (southern blue catfish)
Ictalurus mexicanus (Meek, 1904) (Rio Verde catfish)
Ictalurus nazas Avila-Treviño, Cardoza-Martínez, Alonzo-Rojo & Pérez-Rodríguez, 2025
Ictalurus ochoterenai (F. de Buen, 1946) (Chapala catfish)
Ictalurus pricei (Rutter, 1896) (Yaqui catfish)
Ictalurus punctatus (Rafinesque, 1818) (channel catfish)
Five fossil species also are assigned to this genus:
†Ictalurus countermani Lundberg & Luckenbill, 2012 (Late Miocene St.
This brief starts where responsible research should: with the source description of “Ictalurus” as genus of fishes. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as genus of fishes. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 Jul 4, 2026. The linked authority identifier is Q1711508. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1904, 1899, 1880 and 1840.
A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Ictalurus” 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.