''Salvethymus svetovidovi'', also called the long-finned charr, is a species of

salmonid Salmonidae is a family of ray-finned fish that constitutes the only currently extant family in the order Salmoniformes . It includes salmon (both Atlantic and Pacific species), trout (both ocean-going and landlocked), chars, freshwater whitefis ...

fish. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

to Elgygytgyn Lake in Chukotka,

Far East The ''Far East'' was a European term to refer to the geographical regions that includes East and Southeast Asia as well as the Russian Far East to a lesser extent. South Asia is sometimes also included for economic and cultural reasons. The te ...

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...

,Kottelat, M. 1996.
''Salvethymus svetovidovi''

2006 IUCN Red List of Threatened Species
Downloaded on 5 August 2007. together with another species, the small-mouth char ''Salvelinus elgyticus''. A third char species in the same lake is ''Salvelinus'' ''boganidae'', the Boganid char.Alexander G. Osinov, Anna L. Senchukova, Nikolai S. Mugue, Sergei D. Pavlov, Igor A. Chereshnev (2015
Speciation and genetic divergence of three species of charr from ancient Lake El'gygytgyn (Chukotka) and their phylogenetic relationships with other representatives of the genus ''Salvelinus''
''Biological Journal of the Linnean Society'' 116, 63–85.

Taxonomy

The long-finned char is a morphologically aberrant type of char; when scientifically first described in 1990, it was placed as the single species in ''Salvethymus'', a new

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

. It is closely related to the true chars in the genus ''

Salvelinus ''Salvelinus'' is a genus of salmonid fish often called char or charr; some species are called "trout". ''Salvelinus'' is a member of the subfamily Salmoninae within the family Salmonidae. The genus has a northern circumpolar distribution, and ...

'' and is

phylogenetically In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...

placed within this genus; it is probably a sister lineage to the

Arctic char The Arctic char or Arctic charr (''Salvelinus alpinus'') is a cold-water fish in the family Salmonidae, native to alpine lakes and arctic and subarctic coastal waters. Its distribution is Circumpolar North. It spawns in freshwater and popu ...

(''Salvelinus alpinus'') complex.

References

Salvethymus Fish of Russia Salmonidae Endemic fauna of Russia Fauna of Siberia Monotypic fish genera Fish described in 1990 {{Salmoniformes-stub