Vonduun crabs were carnivorous crabs native to the remote planet Zav Alox. The Aloxians, the planet's native sentient species, were born highly aggressive. As a result, Aloxian children were sent to hunt the crabs at a young age, and if they were not eaten, would wear the crabs' skulls in order to temper their aggression. When the Aloxians eventually grew out of the skulls, they would break from the force of the wearer's head. The Patrolian Farks acquired a vonduun crab skull during the High Republic Era and gave it to the pirate queen Maz Kanata, who kept the skull in her castle on Takodana until it fell into the possession of the young Force-sensitive Aloxian Qort after he wound up there.
Vonduun crab's skull first appeared in the thirty-fifth issue of the 2016 comic series Star Wars: Doctor Aphra. The issue was written by Simon Spurrier, illustrated by Andrea Broccardo, and published by Marvel Comics on August 21, 2019. The creature made its first appearance in the ninth issue of the comic series Star Wars: The High Republic Adventures, which was written by Daniel José Older and published by IDW Publishing on October 6, 2021.
In the Star Wars Legends continuity, the vonduun crab living shell first appeared as part of the Vonduun Skerr Kyrric armor of the Yuuzhan Vong in the 1999 novel The New Jedi Order: Vector Prime, written by R. A. Salvatore. The creature made its first appearance in the 2000 novel The New Jedi Order: Dark Tide II: Ruin written by Michael A. Stackpole.
- Star Wars: The High Republic: Chronicles of the Jedi