Hybognathus amarus (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 Rio Grande silvery minnow (Hybognathus amarus) or Rio Grande minnow, is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the shiners, daces, and minnows. This is a small, herbivorous, North American fish, one of the seven North American members of the genus Hybognathus.
The Rio Grande silvery minnow is one of the most endangered fish in North America, according to the U. S. Fish and Wildlife Service (USFWS). It was classified as endangered in the U.S. in 1994 and now is found in less than 5% of its natural habitat in the Rio Grande. Historically, the minnow was found from Española, New Mexico, to the Gulf of Mexico in Texas. Now, it can only be seen between Cochiti Dam and Elephant Butte Reservoir. It can also be found in a small pond in North Carolina.
Wikipedia contributors, Rio Grande silvery minnow; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:50:17.983114+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Hybognathus amarus (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 amarus (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 nuchalis Agassiz, 1855 | CyprinidaeChordata | Accepted speciesExtinction status not supplied |
| Hybognathus placitus Girard, 1856 | 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 |
|---|---|
| Algoma amara Girard, 1856 Girard, 1856 | synonym |
| Hybognathus nuchalis amarus (Girard, 1856) (Girard, 1856) | synonym |
| Algoma fluviatilis Girard, 1856 Girard, 1856 | 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.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=1419452 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:3MY4V. Classification follows source parent identifiers. English common names may vary by region.