Varactyls, also known as Dragonmounds, are reptavian herbivores indigneous to the planet Utapau, though some were found on worlds like Kashyyyk.
A female Varactyl named Boga is featured in Star Wars: Episode III: Revenge of the Sith and is seen mounted by Obi-Wan Kenobi as a transport. She is also seen during the chase between Kenobi and General Grevious. As she and Kenobi were shot down after Order 66 was given, many believed she fell to her death; however, this was proven wrong, and she survived, like Kenobi.
Lego produced a minifigure set including Boga in the "General Grievous Chase" in set in 7255.