Baaraddelskelliumfatrexius beast

The Baaraddelskelliumfatrexius Beast was an animal resembling a giant squirrel which lived on Raxacoricofallapatorius. The Raxacoricofallapatorians hunted them to extinction. (SJA: Revenge of the Slitheen) They were known for their pustules, leading to the phrase "A baaraddelskelliumfatrexius can't change its pustules". (NSA: The Slitheen Excursion)