Hybognathus placitus Girard, 1856
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Open encyclopedia reference
The plains minnow (Hybognathus placitus) is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the shiners, daces and minnows. It is a large minnow that was once a common bait fish. The plains minnow requires shallow, slow-moving streams to complete its life cycle. Pollution, dams, and introduced sport fish have caused populations to decline.
It ranges from the Mississippi River in Tennessee west in the Missouri, Arkansas, Red, Brazos, Canadian and Colorado River drainages from Montana and North Dakota south to New Mexico and Texas. It is one of the more common fishes of the western plains.
Wikipedia contributors, Plains minnow; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:50:26.545995+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Hybognathus placitus Girard, 1856
- Name authority
- Girard, 1856
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cypriniformes
- Family
- Cyprinidae
- Genus
- Hybognathus
- 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.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- gigaclassActinopterygii
- superclassActinopteri
- classTeleostei
- orderCypriniformes
- familyCyprinidae Rafinesque, 1815
- subfamilyLeuciscinae Bonaparte, 1835
- genusHybognathus Agassiz, 1855
- speciesHybognathus placitus Girard, 1856
Close classified relatives
These entries share the source’s genus, Hybognathus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Hybognathus amarus (Girard, 1856) | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Hybognathus nuchalis Agassiz, 1855 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Hybognathus regius Girard, 1856 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Hybognathus argyritis Girard, 1856 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| brassy minnowHybognathus hankinsoni Hubbs, 1929 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Hybognathus hayi Jordan, 1885 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Hybognathus evansi Girard, 1856 Girard, 1856 | synonym |
| Hybognathus churchilli Hildebrand, 1932 Hildebrand, 1932 | synonym |
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.
- Girard, C. F. (1856). Researches upon the cyprinoid fishes inhabiting the fresh waters of the United States, west of the Mississippi Valley, from specimens in the museum of the Smithsonian Institution. Proceedings of the Academy of Natural Sciences of Philadelphia, v. 8: 165–213.pp. 1–49,. 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:3MY56. Classification follows source parent identifiers. English common names may vary by region.