Slimer
From Tardis Wiki, the free Doctor Who reference
Slimers were a species native to Eskon. The Slimers were created when a wounded Spulver Worm secreted pus into the water supply of the Eskoni. Once the Eskoni digested the infected water, the Spulver DNA overwrote that of the Eskoni, thus producing the Slimers. (EDA: Coldheart)