Argentina
Checklist of Endemic Marine Fish Species
This list of marine fish species found exclusively in Argentina 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
Careproctus fueguensis
(Perciformes Liparidae)
Argentinolycus elongatus
(Perciformes Zoarcidae)
Leptonotus vincentae
(Syngnathiformes Syngnathidae) Vincent's Pipefish
Discopyge castelloi
(Torpediniformes Narcinidae) Castello's Apron
Numbfish