PodonidaePodonidae is a family of onychopods in the order Diplostraca. There are about 8 genera and at least 20 described species in Podonidae. A lot of them are non-native species, many of which pose a great threat to aquatic ecosystems.GeneraCaspievadneCornigeriusEvadne Lovén, 1836PleopisPleopsis Dana, 1853Podon Lilljeborg, 1853PodonevadnePseudevadne Claus, 1877