memory alpha

A Denebian slimevark was an animal from a planet in the Deneb star system. (SCO: "Holodeck Rescues, Number 1")

Biology

Adult Denebian slimevarks appeared to be about three to four feet in height when standing on four legs. They had three toes on their feet.

They were purple and green in color, and had spikes on their bodies, including their tail. They also had an elephant-like trunk and horns on their head. Their long, whip-like tongues secreted purple slime. (SCO: "Holodeck Rescues, Number 1")

Homeworld

Their homeworld was located somewhere in the Denebian star system. (SCO: "Holodeck Rescues, Number 1")

History

The Starfleet Scouts JR, Roo, and Sprocket once ran a holodeck program that allowed them to go on a rescue mission to save a baby Denebian slimevark and return him to his mother.

The baby was in danger of getting killed by a volcano and was unable to get across a deep chasm to the other cliff where his mother was located. JR used his rocket boots to fly over there, and using a giant Andorian blueberry, he was able to get the Denebian slimevark to trust him so that he would let him carry him to safety. (SCO: "Holodeck Rescues, Number 1")

The holographic mother and infant's utterances were provided by an unknown performer.
It may have been possible that their homeworld was Deneb IV, as it was the homeworld of a similarly named species called the Denebian slime devil.
In Hindi, "Vark" means "silver leaf" [1], though another possibility could be that the creature's name is derived from the word "Aardvark".