Paraguay
Checklist of Endemic Freshwater Fish Species
This list of freshwater fish species found exclusively in Paraguay 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
Hyphessobrycon arianae
(Characiformes Characidae)
Hyphessobrycon procerus
(Characiformes Characidae)
Hyphessobrycon pytai
(Characiformes Characidae)
Mixobrycon ribeiroi
(Characiformes Characidae)
Characidium etzeli
(Characiformes Crenuchidae)
Australoheros guarani
(Cichliformes Cichlidae)
Cichlasoma pusillum
(Cichliformes Cichlidae)
Crenicichla gillmorlisi
(Cichliformes Cichlidae)
Gymnogeophagus
caaguazuensis (Cichliformes Cichlidae) Caaguazu
Eartheater
Phallotorynus dispilos
(Cyprinodontiformes Poeciliidae) Twospot Toothcarp
Phallotorynus psittakos
(Cyprinodontiformes Poeciliidae) Clementina Toothcarp
Austrolebias paranaensis
(Cyprinodontiformes Rivulidae)
Corydoras diphyes
(Siluriformes Callichthyidae)
Pimelodella parva
(Siluriformes Heptapteridae)
Ancistrus pirareta
(Siluriformes Loricariidae)
Hypostomus dlouhyi
(Siluriformes Loricariidae)
Otocinclus mimulus
(Siluriformes Loricariidae)
Otothyropsis dialeukos
(Siluriformes Loricariidae)
Megalonema pauciradiatum
(Siluriformes Pimelodidae)