What is "emydidae"

The Emydidae, commonly called the pond turtles or marsh turtles, are a family of turtles. Previously, several species of Asian box turtles were classified in the family. However, revised taxonomy has separated them to a different family. Now, the Emydidae, with the exception of two species of pond turtles, are entirely a Western Hemisphere family. The family Emydidae includes close to 50 species in 10 genera.