Slithergee

The Slithergee were a race of obsequious alien slugs whose home planet was destroyed.

Slithergees were blind creatures and hunted their prey by scent. Slithergees also used slaves as sight guides and had a fear of darkness.

A spacecraft carrying the Slithergee arrived in the orbit of the colony planet Puxatornee, requesting the permission to settle on the first moon. Otherwise, they would humbly threaten to declare all-out war. Interference from alternate futures — unwillingly aided by the Seventh Doctor — resulted in the creation of two timelines branching out from this event, with one timeline seeing a war being waged between the Slithergee and the human colonists that reduced Puxatornee to a radioactive cinder and the other seeing a policy of appeasement towards the Slithergee going so far that the Slithergee took complete control of the colony and prosecuted human objections as "hate crimes". (AUDIO: Flip-Flop)

A Slithergee ice dance spectacular show was being held at the Sirius Exhibition Station when the Eighth Doctor and Lucie Miller visited. (AUDIO: Max Warp)

During Lucie Miller's travels with, she attended the final of Thordon's Got Talent, which was won by a singing Slithergee. (AUDIO: The Resurrection of Mars)

Bernice Summerfield considered "Slithergee silverware" to be something Irving Braxiatel would want to obtain for the Braxiatel Collection. (PROSE: There Never Need Be Longing In Your Eyes)

River Song thought she recognised Slithergee architecture in the buildings generated by the ruins of a prototype TARDIS. (AUDIO: Lies in Ruins)

Behind the scenes
The Slithergee also appeared in the first instalment of a Big Finish Productions audio series featuring Vienna Salvatori as the titular character. This series is not currently considered part of the DWU.