a really big and voracious turtle (Macrochelys lacertina) inhabiting the streams associated with southern united states of america. It often achieves the weight of 2 hundred pounds. Unlike the common snapping turtle, that title can be mistakenly used, it's a scaly head and many small machines under the end. This name's often provided to other turtles, as to types of Trionyx.
big types having three ridges on its back; within southeastern usa