Blixus/Legends

Blixus were large cephalopods from unknown planet of origin. During the Clone Wars, one such creature was kept on the Zygerrian slave vessel owned by captain Onyx. When the vessel was attacked by the group of Jedi and clone troopers, Onyx released the Blixus to kill them. The creature managed to kill several clones, but was defeated by the Jedi. Blixus could also withstand the vacuum of space.

Behind the Scenes
The creature that attacks the Republic forces is not named in the issue, but according to author Henry Gilroy it is called a blixus.

Appearances
Star Wars The Clone Wars: Slaves of the Republic - Chapter 2: Slave Traders of Zygerria