peamouth
Mylocheilus caurinus (Richardson, 1836)
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.
Mylocheilus caurinus, Synonym: Mylocheilus lateralis Local number: SIA2011-1233 Summary: RU 007186, Box 5, Folder 14; Drawing of Cyprinoid observed near Fort Vancouver in 1841, drawn by Joseph Drayton for the United States Exploring Expedition, 1838-1842. Dates: circa 1838-1842 Repository: <a href="http://siarchives.si.edu" rel="nofollow">Smithsonian Institution Archives</a> Related blog post: <a href="http://nmnh.typepad.com/fieldbooks/2011/07/when-are-drawings-field-notes.html" rel="nofollow">When Are Drawings Field Notes?</a> <a href="http://collections.si.edu" rel="nofollow">View more collections from the Smithsonian Institution.</a>.
Smithsonian Institution Creator: Joseph Drayton · Public domain · Image sourceProvider-generated thumbnail requested at 320 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
The peamouth (Mylocheilus caurinus), also known as the peamouth chub, redmouth sucker or northwestern dace, is a species of freshwater ray-finned fish from the family Leuciscidae, the shiners, daces and minnows. This species is found in western North America.
Wikipedia contributors, Peamouth; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:33:49.908426+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Mylocheilus caurinus (Richardson, 1836)
- Name authority
- (Richardson, 1836)
- Common name
- peamouth
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Cypriniformes
- Family
- Cyprinidae
- Genus
- Mylocheilus
- 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
- genusMylocheilus Agassiz, 1855
- speciesMylocheilus caurinus (Richardson, 1836)
Close classified relatives
No other member of this genus is present in the selected snapshot.
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Mylocheilus lateralis Agassiz & Pickering, 1855 Agassiz & Pickering, 1855 | synonym |
| Cyprinus caurinus Richardson, 1836 Richardson, 1836 | synonym |
| Mylocheilus fraterculus Girard, 1856 Girard, 1856 | synonym |
| Clarkina caurina (Richardson, 1836) (Richardson, 1836) | 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=281605 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.
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:4545K. Classification follows source parent identifiers. English common names may vary by region.