A Durnian slime-beast was a type of invertebrate animal known for its slime. Its eyes never rose higher than 10 centimeters off the ground.
After being beaten to a deal with the Keros Family of the Orion Colony of Daros IV, Jack Corrigan of the Werewolf was enraged and threatened the successful crew of the Eridani Star, saying "When I'm through with you, you'll have to look up to Durnian slime-beasts!" (FASA RPG module: Orion Ruse)