Alligator snapping turtle

The alligator snapping turtle (Macrochelys temminckii) is a species of turtle in the family Chelydridae. The species is native to freshwater habitats in the United States. M. temminckii is one of the heaviest freshwater turtles in the world.[3] It is often associated with, but not closely related to, the common snapping turtle, which is in the genus Chelydra. The specific epithettemminckii is in honor of Dutch zoologist Coenraad Jacob Temminck.[4][5]