The Percidae reference article from the English Wikipedia on 24-Apr-2004
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Percidae

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Percidae
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Actinopterygii
Order:Perciformes
Family:Percidae
Genera
Ammocrypta
Crystallaria
Etheostoma
Gymnocephalus
Perca
Percarina
Percina
Romanichthys
Sander
Zingel

The Percidae are a family of perciform fish found in fresh and brackish waters of the Northern Hemisphere. The family contains approximately 184 species in ten genera. Popular members of the family include: