Damrus

From Memory Alpha, the free Star Trek reference

Damrus was the leader of the Eska hunting party encountered by the Enterprise NX-01 crew on Dakala in 2151. His father was also an accomplished hunter who had instilled in his son strong ideals about the hunt. His prey were shapeshifters which he and his party called wraiths. Damrus and the Eska were able to track them because they emitted a chemical signature when they were afraid, and the Eskan scanners had been modified to detect that signature. Damrus' hunt ended when Captain Jonathan Archer had Dr. Phlox develop a shielding that protected the wraiths. (ENT: "Rogue Planet")