Thymallus ligericus

Thymallus ligericus, the Loire grayling, is a European freshwater fish species in the salmon family Salmonidae. The species is endemic to the upper Loire drainage in France, where it lives in medium to large foothill, canyon and plateau rivers of the mountainous regions.[1]

Thymallus ligericus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Genus: Thymallus
Species:
T. ligericus
Binomial name
Thymallus ligericus
Persat, Weiss, Froufe, Secci-Petretto & Denys, 2019[1]

The Loire grayling was separated as a species distinct from the more widespread European grayling, Thymallus thymallus, in 2019. It is morphologically distinguished from that species by a more elongated body, by its pointed snout (with a straight or convex snout profile vs a concave profile of T. thymallus), a more inferior mouth, a high number of black dots on the sides, a shorter head and a shorter horizontal eye diameter.[1] It can also be distinguished by molecular characters.[1][2]

References
  1. Persat H., Weiss S., Froufe E., Secci-Petretto G., Denys G.P.J. (2019) A third European species of grayling (Actinopterygii, Salmonidae), endemic to the Loire River basin (France), Thymallus ligericus n. sp. Cybium 43: 233-238.
  2. Weiss, S. J., D. V. Gonçalves, G. Secci-Petretto, G. K. Englmaier, A. Gomes-Dos-Santos, G. P. J. Denys, H. Persat, A. Antonov, C. Hahn, E. B. Taylor and E. Froufe (2021) Global systematic diversity, range distributions, conservation and taxonomic assessments of graylings (Teleostei: Salmonidae; Thymallus spp.). Organisms Diversity & Evolution: published online on 25 Nov. 2020.
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