Volice worm

At some point long before 3956 BBY and many millennia before the Battle of Yavin, the volice worm went extinct, with certain specimens eventually becoming fossilized. Over time, individuals would excavate such volice worm remains in order to obtain the increasingly rare sapith crystals, which were used by ancient Jedi Knights as lightsaber focusing crystals and were available in the galaxy by 3956 BBY.

The volice worm was first mentioned in the 2003 BioWare video game Star Wars: Knights of the Old Republic. The game, as well as its 2004 Obsidian Entertainment sequel, Star Wars: Knights of the Old Republic II: The Sith Lords and its accompanying Prima Games game guide, capitalized the creature's name as "Volice worm." However, later sources have instead used a lowercase form of the name, which this article assumes takes precedence. In addition, 2008's The Complete Star Wars Encyclopedia introduced a shortened version of the volice worm's name, and one entry in the book also erroneously claims that the worm excreted the sapith crystals once every ten years instead of once every eleven years.