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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
Marsh knifefish
Rhamphichthys heleios
Rhamphichthyidae
Least Concern
Mastacembelus Alboguttatus
Mastacembelus alboguttatus
Mastacembelidae
Least Concern
Mastacembelus Brachyrhinus
Mastacembelus brachyrhinus
Mastacembelidae
Least Concern
Mastacembelus Congicus
Mastacembelus congicus
Mastacembelidae
Least Concern
Mastacembelus Cryptacanthus
Mastacembelus cryptacanthus
Mastacembelidae
Least Concern
Mastacembelus Dayi
Mastacembelus dayi
Mastacembelidae
Least Concern
Mastacembelus Greshoffi
Mastacembelus greshoffi
Mastacembelidae
Least Concern
Mastacembelus Liberiensis
Mastacembelus liberiensis
Mastacembelidae
Least Concern
Mastacembelus Loennbergii
Mastacembelus loennbergii
Mastacembelidae
Least Concern
Mastacembelus Niger
Mastacembelus niger
Mastacembelidae
Least Concern
Mastacembelus Nigromarginatus
Mastacembelus nigromarginatus
Mastacembelidae
Least Concern
Mastacembelus Notophthalmus
Mastacembelus notophthalmus
Mastacembelidae
Least Concern
Mastacembelus Paucispinis
Mastacembelus paucispinis
Mastacembelidae
Least Concern
Mastacembelus Polli
Mastacembelus polli
Mastacembelidae
Least Concern
Mastacembelus Praensis
Mastacembelus praensis
Mastacembelidae
Least Concern
Mastacembelus Reygeli
Mastacembelus reygeli
Mastacembelidae
Least Concern
Mastacembelus Robertsi
Mastacembelus robertsi
Mastacembelidae
Least Concern
Mastacembelus Sanagali
Mastacembelus sanagali
Mastacembelidae
Least Concern
Mastacembelus Seiteri
Mastacembelus seiteri
Mastacembelidae
Least Concern
Mastacembelus Tinwini
Mastacembelus tinwini
Mastacembelidae
Least Concern
Mastacembelus Traversi
Mastacembelus traversi
Mastacembelidae
Least Concern
Mastacembelus Unicolor
Mastacembelus unicolor
Mastacembelidae
Least Concern
Mastiglanis Asopos
Mastiglanis asopos
Heptapteridae
Least Concern
Matacaimán
Entomocorus gameroi
Auchenipteridae
Least Concern
Matoucrabe
Bivibranchia bimaculata
Hemiodontidae
Least Concern
Maya needlefish
Strongylura hubbsi
Belonidae
Least Concern
Mayan sea catfish
Ariopsis assimilis
Ariidae
Least Concern
Mayan tetra
Hyphessobrycon compressus
Acestrorhamphidae
Least Concern
Maylandia Callainos
Maylandia callainos
Cichlidae
Least Concern
Maylandia Emmiltos
Maylandia emmiltos
Cichlidae
Least Concern
Maylandia Flavifemina
Maylandia flavifemina
Cichlidae
Least Concern
Maylandia Lanisticola
Maylandia lanisticola
Cichlidae
Least Concern
Maylandia Mbenjii
Maylandia mbenjii
Cichlidae
Least Concern
Maylandia Mossambica
Maylandia mossambica
Cichlidae
Least Concern
Maylandia Nigrodorsalis
Maylandia nigrodorsalis
Cichlidae
Least Concern
Maylandia Pambazuko
Maylandia pambazuko
Cichlidae
Least Concern
Maylandia Phaeos
Maylandia phaeos
Cichlidae
Least Concern
Maylandia Pulpican
Maylandia pulpican
Cichlidae
Least Concern
Maylandia Pyrsonotos
Maylandia pyrsonotos
Cichlidae
Least Concern
Maylandia Sciasma
Maylandia sciasma
Cichlidae
Least Concern
Maylandia Tarakiki
Maylandia tarakiki
Cichlidae
Least Concern
Maylandia Xanthos
Maylandia xanthos
Cichlidae
Least Concern
Maze King Pleco
Pterygoplichthys lituratus
Loricariidae
Least Concern
Mbaraga
Acapoeta tanganicae
Cyprinidae
Least Concern
Edible
Mchenga Thinos
Mchenga thinos
Cichlidae
Least Concern
Meek's Silverside
Atherinella meeki
Atherinopsidae
Least Concern
Mees's pimelodus catfish
Pimelodus albofasciatus
Pimelodidae
Least Concern
Megalamphodus Epicharis
Megalamphodus epicharis
Least Concern