Arctic grayling
Thymallus arcticus (Pallas, 1776)
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.
Arctic Grayling (Thymallus arcticus), photographed under water, Clearwater Creek Alaska. 4Wt Fly rod 5X tippet.
No machine-readable author provided. AKSMITH assumed (based on copyright claims). · CC BY-SA 2.5 · Image sourceProvider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.
Open encyclopedia reference
The Arctic grayling (Thymallus arcticus) is a species of freshwater fish in the salmon family Salmonidae. T. arcticus is widespread throughout the Arctic and Pacific drainages in Canada, Alaska, and Siberia, as well as the upper Missouri River drainage in Montana. In the U.S. state of Arizona, an introduced population is found in the Lee Valley and other lakes in the White Mountains. They were also stocked at Toppings Lake by the Teton Range and in lakes in the high Uinta Mountains in Utah, as well as alpine lakes of the Boulder Mountains (Idaho) in central Idaho.
Wikipedia contributors, Arctic grayling; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T04:53:32.873110+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Thymallus arcticus (Pallas, 1776)
- Name authority
- (Pallas, 1776)
- Common name
- Arctic grayling
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Salmoniformes
- Family
- Salmonidae
- Genus
- Thymallus
- 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
- orderSalmoniformes
- familySalmonidae Cuvier, 1816
- subfamilyThymallinae Gill, 1885
- genusThymallus Linck, 1790
- speciesThymallus arcticus (Pallas, 1776)
Close classified relatives
These entries share the source’s genus, Thymallus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Thymallus baicalensis Dybowski, 1874 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus grubii Dybowski, 1869 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus pallasii Valenciennes, 1848 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus tugarinae Knizhin, Antonov, Safronov & Weiss, 2007 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus yaluensis Mori, 1928 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus nigrescens Dorogostaisky, 1923 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus baicalolenensis Matveev, Samusenok, Pronin & Tel'pukhovsky, 2005 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus brevipinnis Svetovidov, 1931 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus brevirostris Kessler, 1879 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus burejensis Antonov, 2004 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus flavomaculatus Knizhin, Antonov & Weiss, 2006 | SalmonidaeChordata | Accepted speciesExtinction status not supplied |
| Thymallus mertensii Valenciennes, 1848 | SalmonidaeChordata | 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 |
|---|---|
| Thymallus montanus Milner, 1874 Milner, 1874 | synonym |
| Thymallus arcticus arcticus (Pallas, 1776) (Pallas, 1776) | synonym |
| Salmo arcticus Pallas, 1776 Pallas, 1776 | synonym |
| Salmo thymalloides (Richardson, 1823) (Richardson, 1823) | synonym |
| Thymallus articus | synonym |
| Coregonus signifer Richardson, 1823 Richardson, 1823 | synonym |
| Coregonus thymalloides Richardson, 1823 Richardson, 1823 | synonym |
| Thymallus signifer (Richardson, 1823) (Richardson, 1823) | synonym |
| Thymallus tricolor Cope, 1865 Cope, 1865 | synonym |
| Thymalus ontariensis Valenciennes, 1848 Valenciennes, 1848 | synonym |
| Thymallus arcticus lenensis Weiss, Knizhin, Kirillov & Froufe, 2006 Weiss, Knizhin, Kirillov & Froufe, 2006 | synonym |
| Thymallus arcticus montanus Milner, 1874 Milner, 1874 | synonym |
| Thymallus arcticus signifer (Richardson, 1823) (Richardson, 1823) | synonym |
| Thymallus signifer tricolor Cope, 1865 Cope, 1865 | synonym |
| Thymallus tricolor montanus Milner, 1874 Milner, 1874 | synonym |
| Salmo signifer (Richardson, 1823) (Richardson, 1823) | 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=254571 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:56Q7X. Classification follows source parent identifiers. English common names may vary by region.