Orithian creeper

The Orithian creeper was an animal lifeform from Orith II, a jungle world sharing its orbit with Orith Prime, located in the galaxy's Beta Quadrant. The creeper was a worm species. 

Biology and environment
The Orithian creeper's body plan was reminiscent of Aehallh worms and fumarole worms. However, the creeper was shorter, and thicker around the neck. 

Their behavior and abilities were similar to the other worms as well. Like them, they roamed underground and only pushed a part of their body aboveground. Unlike them, the creeper did not retract its body into the underground when killed. Orithian creepers would emerge alone or in pairs. 

Its mouth consisted of a pair of jaws nestled in one another. The tubular body was propelled by digit-like attachments to the ventral armor plating. The back was covered in dark-brown colored armor, the ventral plates were shaded light brown. The head lacked noticeable eyes, and was dominated by a three-pronged maw, from which the worm could spit venom.

When emerging from underground, the Aehallh worm almost towered over average-sized humanoids. It would slam with its upper body, or cover with venom. 

History
In 2409, The bird-of-prey of Captain K'teng crashed on Orith II. and his band of Hirogen began hunting the surviving crew, and left them around the area. When a KDF search part arrived on the planet, they found some of the decaying corpses near creeper sites, triggering creepers to emerge and attack the party. The rescue party encountered a few more creepers during their attempts to recover survivors from Tarkan's traps.