Steel-tailed stalker

Steel-tailed stalker was a predatory sub-species of Tarisian Bogstalker that rapidly evolved on the planet Odessen after being transplanted there. The creature evolved a plasteel-like barb at the end of its tail, which Doctor Juvard Illip Oggurobb deemed enough to classify it as a new breed.

Behind the scenes
Steel-tailed stalkers appear in Star Wars: The Old Republic: Knights of the Fallen Empire Chapter 12: Visions in the Dark.