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Freshwater Fish Species
All freshwater fish species found in rivers, lakes, streams, and ponds worldwide. From tiny tetras to the giant arapaima — covering every continent.
18,067
Total Species
1,926
Endangered (EN+CR)
1,910
Edible Species
204
Families
Rudd
Scardinius erythrophthalmus
Cyprinidae
Least Concern
Rudolf lates
Lates longispinis
Latidae
Data Deficient
Edible
Ruf's enteromis
Enteromius ruforum
Cyprinidae
Ruffe
Gymnocephalus cernua
Percidae
Least Concern
Rummy-nose tetra
Petitella rhodostoma
Edible
Rupununi Astyanax
Astyanax rupununi
Acestrorhamphidae
Least Concern
Rush darter
Etheostoma phytophilum
Percidae
Endangered
Russet darter
Percina versicolor
Percidae
Russetfin topminnow
Fundulus escambiae
Fundulidae
Least Concern
Edible
Russian bitterling
Acheilognathus asmussii
Cyprinidae
Least Concern
Edible
Russian river tule perch
Hysterocarpus traskii
Embiotocidae
Least Concern
Rust corydoras
Corydoras rabauti
Callichthyidae
Least Concern
Rust corydoras
Osteogaster rabauti
Least Concern
Rustyside sucker
Thoburnia hamiltoni
Catostomidae
Near Threatened
Rutilus Heckelii
Rutilus heckelii
Cyprinidae
Least Concern
Rutilus Kutum
Rutilus kutum
Cyprinidae
Rutilus Stoumboudae
Rutilus stoumboudae
Cyprinidae
Ruwenzori lampeye
Platypanchax modestus
Poeciliidae
Least Concern
Rwandese carp
Labeobarbus platystomus
Cyprinidae
Critically Endangered
Sabah Danio
Nematabramis everetti
Cyprinidae
Least Concern
Sabaki tilapia
Oreochromis spilurus
Cichlidae
Least Concern
Edible
Sabalito
Steindachnerina biornata
Curimatidae
Least Concern
sabalo
Brycon oligolepis
Bryconidae
Least Concern
Sabanejewia Baltica
Sabanejewia baltica
Cobitidae
Least Concern
Sabanejewia Bulgarica
Sabanejewia bulgarica
Cobitidae
Least Concern
Sabanejewia Kubanica
Sabanejewia kubanica
Cobitidae
Least Concern
Sabanejewia Romanica
Sabanejewia romanica
Cobitidae
Vulnerable
Saberfin killie
Terranatos dolichopterus
Rivulidae
Least Concern
Edible
Sabine shiner
Notropis sabinae
Cyprinidae
Least Concern
Sabine shiner
Miniellus sabinae
Least Concern
Sabretoothed thryssa
Lycothrissa crocodilus
Engraulidae
Least Concern
Saccoderma Hastata
Saccoderma hastata
Characidae
Least Concern
Saccoderma Melanostigma
Saccoderma melanostigma
Characidae
Least Concern
Saccoderma Robusta
Saccoderma robusta
Characidae
Least Concern
Saccodon Dariensis
Saccodon dariensis
Parodontidae
Least Concern
Saccodon Terminalis
Saccodon terminalis
Parodontidae
Data Deficient
Saccodon Wagneri
Saccodon wagneri
Parodontidae
Least Concern
Sacramento blackfish
Orthodon microlepidotus
Cyprinidae
Least Concern
Sacramento perch
Archoplites interruptus
Centrarchidae
Endangered
Sacramento pikeminnow
Ptychocheilus grandis
Cyprinidae
Least Concern
Sacramento sucker
Catostomus occidentalis
Catostomidae
Least Concern
Saddle cichlid
Aequidens tetramerus
Cichlidae
Least Concern
Saddle corydoras
Brochis ephippifer
Least Concern
Saddleback darter
Percina vigil
Percidae
Least Concern
Saddled bichir
Polypterus endlicherii
Polypteridae
Least Concern
Saddled galaxias
Galaxias tanycephalus
Galaxiidae
Critically Endangered
Saddled madtom
Noturus fasciatus
Ictaluridae
Endangered
Sadler's robber
Brachyalestes sadleri
Least Concern