Denebian slime devil

Denebian slime devils are foul creatures that are native to the Deneb system.

In the 23rd century, the name was used as an insult. In 2267, Klingon officer, Korax. referred to Captain James T. Kirk as a slime devil, which angered Ensign Pavel Chekov. (TOS episode: "The Trouble with Tribbles").

In 2280, two crewmembers from a landing party from the USS Madrid became injured by a pack of slime devil's on an unnamed planet. Thankfully, they were rescued by Cadet Dmitri Valtane who, armed with only a stick, managed to ward them off. (ST game: Starship Creator).