Portugal
Checklist of Endemic Freshwater Fish Species
This list of freshwater fish species found exclusively in Portugal 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
+ = species added to the Catalog of Fishes after 9 Februrary 2023
Cobitis almadae + (Cypriniformes Cobitidae) Almada Spined Loach
Achondrostoma occidentale
(Cypriniformes Leuciscidae) Western Ruivaco
Achondrostoma oligolepis
(Cypriniformes Leuciscidae) Ruivaco
Iberochondrostoma almacai
(Cypriniformes Leuciscidae) Southwestern
Arched-mouth Nase
Iberochondrostoma
lusitanicum (Cypriniformes Leuciscidae) Portuguese
Arched-mouth Nase
Iberochondrostoma
olisiponense (Cypriniformes Leuciscidae) Lisbon
Arched-mouth Nase
Squalius aradensis
(Cypriniformes Leuciscidae) Arade Chub
Squalius torgalensis
(Cypriniformes Leuciscidae) Mira Chub
Lampetra alavariensis
(Petromyzontiformes Petromyzontidae) Costa de Prata Lamprey
Lampetra auremensis
(Petromyzontiformes Petromyzontidae) Nabão Lamprey
Lampetra lusitanica
(Petromyzontiformes Petromyzontidae) Sado Lamprey