Erymnochelys is a genus of freshwater turtles, primarily represented by the species Erymnochelys madagascariensis, commonly known as the Madagascar big-headed turtle. Native to Madagascar, these turtles are characterized by their large heads and relatively flattened carapaces. They inhabit slow-moving rivers, lakes, and swamps, relying on aquatic vegetation and invertebrates for food. The species is critically endangered due to habitat loss and over-exploitation for the pet trade and local consumption, making conservation efforts vital for their survival.