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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
Woundfin
Plagopterus argentissimus
Cyprinidae
Critically Endangered
Wray's gambusia
Gambusia wrayi
Poeciliidae
Near Threatened
Wrinklehead Sculpin
Cottus nozawae
Cottidae
Least Concern
Wuchang bream
Megalobrama amblycephala
Cyprinidae
Least Concern
Wuendsch's killi
Aphyosemion wuendschi
Nothobranchiidae
Data Deficient
X-ray tetra
Pristella maxillaris
Acestrorhamphidae
Least Concern
Edible
Xenentodon Canciloides
Xenentodon canciloides
Belonidae
Least Concern
Xenobarbus Loveridgei
Xenobarbus loveridgei
Data Deficient
Xenocharax Crassus
Xenocharax crassus
Distichodontidae
Least Concern
Xenocharax Spilurus
Xenocharax spilurus
Distichodontidae
Xenochromis Hecqui
Xenochromis hecqui
Cichlidae
Least Concern
Xenocyprioides Carinatus
Xenocyprioides carinatus
Least Concern
Xenocyprioides Parvulus
Xenocyprioides parvulus
Endangered
Xenocypris Davidi
Xenocypris davidi
Cyprinidae
Least Concern
Edible
Xenocypris Fangi
Xenocypris fangi
Cyprinidae
Near Threatened
Xenocypris Hupeinensis
Xenocypris hupeinensis
Cyprinidae
Data Deficient
Xenocypris Medius
Xenocypris medius
Cyprinidae
Xenocypris Yunnanensis
Xenocypris yunnanensis
Cyprinidae
Critically Endangered
Xenophysogobio Boulengeri
Xenophysogobio boulengeri
Cyprinidae
Xenophysogobio Nudicorpa
Xenophysogobio nudicorpa
Cyprinidae
Xenotilapia Albini
Xenotilapia albini
Cichlidae
Data Deficient
Xenotilapia Burtoni
Xenotilapia burtoni
Cichlidae
Endangered
Xenotilapia Melanogenys
Xenotilapia melanogenys
Cichlidae
Least Concern
Xenotilapia Nasus
Xenotilapia nasus
Cichlidae
Data Deficient
Xenotilapia Rotundiventralis
Xenotilapia rotundiventralis
Cichlidae
Least Concern
Xenotilapia Spilopterus
Xenotilapia spilopterus
Cichlidae
Least Concern
Xenotoca Doadrioi
Xenotoca doadrioi
Goodeidae
Critically Endangered
Xenotoca Lyonsi
Xenotoca lyonsi
Goodeidae
Critically Endangered
Xenurobrycon Coracoralinae
Xenurobrycon coracoralinae
Stevardiidae
Least Concern
Xenurobrycon Macropus
Xenurobrycon macropus
Stevardiidae
Least Concern
Xenurobrycon Polyancistrus
Xenurobrycon polyancistrus
Stevardiidae
Least Concern
Xenurobrycon Pteropus
Xenurobrycon pteropus
Stevardiidae
Least Concern
Xenurobrycon Varii
Xenurobrycon varii
Stevardiidae
Xenurolebias Cricarensis
Xenurolebias cricarensis
Xenurolebias Izecksohni
Xenurolebias izecksohni
Vulnerable
Xenurolebias Pataxo
Xenurolebias pataxo
Xenurolebias Tupinikin
Xenurolebias tupinikin
Xie’s golden-lined fish
Sinocyclocheilus xiejiahuai
Cyprinidae
Xingren golden-lined fish
Sinocyclocheilus xingrenensis
Cyprinidae
Xingu corydoras
Hoplisoma xinguenss
Least Concern
Xingu corydoras
Corydoras xinguensis
Callichthyidae
Least Concern
Xingú headstander
Hypomasticus julii
Anostomidae
Least Concern
Xiphophorus Kallmani
Xiphophorus kallmani
Poeciliidae
Data Deficient
Xiphophorus Mayae
Xiphophorus mayae
Poeciliidae
Least Concern
Xiphophorus Roseni
Xiphophorus roseni
Poeciliidae
Xiurenbagrus Dorsalis
Xiurenbagrus dorsalis
Amblycipitidae
Critically Endangered
Xiurenbagrus Gigas
Xiurenbagrus gigas
Amblycipitidae
Xiurenbagrus Xiurenensis
Xiurenbagrus xiurenensis
Amblycipitidae
Data Deficient