Trachemys scripta scripta
The yellow bellied Slider is a subspecies of the pond slider. As its name implies, it is yellow underneath with black spots. The upper shell has concentric rings of yellow on green on each scale of the shell.
It is found in a wide variety of habitats, including slow-moving rivers, floodplain swamps, marshes, seasonal wetlands, and permanent ponds.
I kept it as a pet for a few months before releasing it into a local pond.