Complex sentence: The Fourche Mountain salamander ("Plethodon fourchensis") is a species of salamander in the family Plethodontidae endemic to the Ouachita Mountains in the central United States.
Split into simpler sentences: The Fourche Mountain salamander ("Plethodon fourchensis") is a species of salamander in the family Plethodontidae. It is endemic to the Ouachita Mountains in the central United States.