Noturus placidus Taylor, 1969

Open encyclopedia reference

The Neosho madtom (Noturus placidus) is a small North American freshwater catfish. It has been listed as a near-threatened species in the United States since 1996 by the International Union for Conservation of Nature and as a federally threatened species under the Endangered Species Act of 1973 since June 1990. The Neosho madtom has features characteristic of all North American catfish, including scaleless skin and a relatively large head with sensory barbels. Adults average less than 3 in (8 cm) in length. They have a brownish midline stripe and an overall mottled appearance. The light-colored edge of the adipose fin is the best characteristic to distinguish it from similar species. Neosho madtoms are short-lived fish, only occasionally surviving more than three years. Little is known about their reproductive habits. They are believed to spawn in June and July. In closely related species, eggs are laid under small stones, and the eggs and sometimes young fish are guarded by a parent. Adults bury themselves in the gravel during the day and come out to feed at night.

Wikipedia contributors, Neosho madtom; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T23:22:55.596011+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Noturus placidus Taylor, 1969

Name authority

Taylor, 1969

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Teleostei

Order

Siluriformes

Family

Ictaluridae

Genus

Noturus

Extinction status

Not supplied by this source

Source habitat flags: Marine: no · Freshwater: yes · Terrestrial: no. These do not form a complete habitat description.

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
2. kingdomAnimalia
3. phylumChordata
4. subphylumVertebrata
5. infraphylumGnathostomata
6. parvphylumOsteichthyes
7. gigaclassActinopterygii
8. superclassActinopteri
9. classTeleostei
10. orderSiluriformes
11. familyIctaluridae Gill, 1861
12. genusNoturus Rafinesque, 1818
13. speciesNoturus placidus Taylor, 1969

Close classified relatives

These entries share the source’s genus, Noturus. They are not necessarily the closest relatives established by molecular evidence.

Browse 44 records assigned to Ictaluridae.

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

1. Taylor, W. R. (1969). A revision of the catfish genus Noturus Rafinesque, with an analysis of higher groups in the Ictaluridae. Bulletin of the United States National Museum, 282: i–vi +1–315, Pls. 1–21. https://doi.org/10.5479/si.03629236.282.1 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:47ZN7. Classification follows source parent identifiers. English common names may vary by region.