Rishi eel

The Rishi eel was a predator who lived on the Rishi moon. They lived in caves on the planet and had four large jaws. During the Clone Wars, one eel killed the clone trooper Cutup and ate him. The eel was later killed by Captain Rex. When the eel was dead Rex marked the armor of Echo with the eel's blood. Because the blood was impossible to remove, it became permanently imprinted on Echo's armor. Echo retained this part of his armor when he converted to an ARC trooper.

Facts

 * Fives had a Rishi eel printed on his helmet to honor clone trooper Cutup who was killed by an eel.

Appearances

 * "Rookies" First appearance
 * LEGO Star Wars III: The Clone Wars Non-canonical appearance
 * "ARC Troopers" Stylized helmet art
 * "The Citadel" Stylized helmet art
 * "Counterattack" Stylized helmet art
 * "Citadel Rescue" Stylized helmet art
 * "Darkness on Umbara" Stylized helmet art
 * "The General" Stylized helmet art
 * "Plan of Dissent" Stylized helmet art
 * "Carnage of Krell" Stylized helmet art
 * "The Unknown" Stylized helmet art
 * "Conspiracy" Stylized helmet art