Stock photography, photos: Alligator Turtle - Louisiana Stock photos of The largest freshwater turtle in the world, the alligator snapping turtle (Macroclemys temminckii) is native to the southeastern region of the United States. Like its distant relative, the common snapper (Chelydra serpentina), the alligator snapper has a large head and powerful jaws. Thibadaux, Louisiana Photograph: © Robert Burch Click for a larger image and more information Keywords associated with this stock photo: Thibadaux, Louisiana, turtle, reptile, alligator snapping turtle, snapping turtle, Macroclemys temminckii, animal, swamp, bayou