Thymallus yaluensis

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Thymallus yaluensis
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Genus: Thymallus
T. yaluensis
Binomial name
Thymallus yaluensis
T. Mori, 1928

Thymallus yaluensis is a putative species of freshwater fish, a grayling in the salmon family Salmonidae. It is endemic to the upper Yalu River in Korea, on the Chinese border. [1]

Thymallus yaluensis is a small fish, the maximum recorded length is 20 cm (8 in). [1] "It has the most beautiful form and fins of a freshwater fish" in Korea. [1]

Some confusion exists about the identity of T. yaluensis. It is very similar in form to the Arctic grayling T. arcticus, and has mostly been treated as a subspecies, T. a. yaluensis, [2] although FishBase treats it as an independent species. [1] According to mitochondrial DNA, it is, however, inseparable from the Amur grayling T. grubii, and was suggested to be a junior synonym of that. [3]

Confusingly, it has also been reported from widely separate regions including Siberia, the Alps in Europe, and the northern Mississippi River drainage in North America.[ citation needed ]

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  1. 1 2 3 4 Froese, Rainer and Pauly, Daniel, eds. (2015). "Thymallus yaluensis" in FishBase . April 2015 version.
  2. Eschmeyer W (2015) yaluensis, Thymallus Catalog of Fishes, California Academy of Sciences.
  3. MA Bo, HUO Tang-Bin, JIANG Zuo-Fa (2008) Thymallus arcticus yaluensis is a synonym of T. grubii by mitochondrial control region sequences analysis. Acta Zootaxonomica Sinica 33 (2)