United Kingdom
Checklist of Endemic Freshwater Fish Species
This list of freshwater fish species found exclusively in the United Kingdom is based on the taxonomy used in Eschmeyer's Catalog of Fishes (2023). For further details on possible inaccuracies in the list see Sources & Caveats.
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds) 2023 Catalog of Fishes: Genera, Species, References. Version downloaded 9 February 2023 https://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp
The current version can be accessed here
Coregonus clupeoides
(Salmoniformes Salmonidae) Powan
Coregonus pennantii
(Salmoniformes Salmonidae) Gwyniad
Coregonus stigmaticus
(Salmoniformes Salmonidae) Schelly
Coregonus vandesius
(Salmoniformes Salmonidae) Vendace
Salvelinus gracillimus
(Salmoniformes Salmonidae) Shetland Char
Salvelinus inframundus
(Salmoniformes Salmonidae) Orkney Char
Salvelinus killinensis
(Salmoniformes Salmonidae) Loch Killin Char
Salvelinus lonsdalii
(Salmoniformes Salmonidae) Haweswater's Char
Salvelinus mallochi
(Salmoniformes Salmonidae) Malloch's Char
Salvelinus maxillaris
(Salmoniformes Salmonidae) Large-mouthed Char
Salvelinus perisii
(Salmoniformes Salmonidae) Torgoch
Salvelinus struanensis
(Salmoniformes Salmonidae) Loch Rannoch Char
Salvelinus willoughbii
(Salmoniformes Salmonidae) Windermere Char
Salvelinus youngeri
(Salmoniformes Salmonidae) Golden Char