Thymallus yaluensis, also known as Yalu grayling, is a putative species of freshwater ray-finned fish in the genus Thymallus (graylings) of the family Salmonidae. It is endemic to the upper Yalu River on the China-North Korea border.[1]
| Thymallus yaluensis | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Salmoniformes |
| Family: | Salmonidae |
| Genus: | Thymallus |
| Species: | T. yaluensis
|
| Binomial name | |
| Thymallus yaluensis T. Mori, 1928
| |
Description
editThymallus yaluensis is a small fish, with a maximum recorded length of 20 cm (7.9 in).[1] It is renowned in Korea for having "the most beautiful form and fins of a freshwater fish".[1]
Taxonomy dispute
editSome confusion exists regarding the identity of T. yaluensis, as it closely resembles the Arctic grayling (Thymallus arcticus) in form and has often been treated as a subspecies (T. a. yaluensis).[2] However, FishBase recognizes it as an independent species.[1] According to mitochondrial DNA, T. yaluensis is, however, inseparable from the Amur grayling (Thymallus 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]
References
edit- ^ a b c d Froese, Rainer; Pauly, Daniel (eds.). "Thymallus yaluensis". FishBase. April 2015 version.
- ^ Eschmeyer W (2015) yaluensis, Thymallus Catalog of Fishes, California Academy of Sciences.
- ^ 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)