Leathery turtle is a term commonly used to refer to the species of sea turtles known as Dermochelys coriacea. However, there are many other synonyms for this term that are equally fitting for this unique creature. These synonyms include the leatherback turtle, the lute turtle, the trunk turtle, and the leather turtle. These names all refer to the turtle's tough, leathery skin, which is a defining characteristic of the species. The leathery turtle is the largest of all sea turtles, and its unique appearance and impressive size make it one of the most recognizable creatures of the ocean.