Sereia
From Tardis Wiki, the free Doctor Who reference
The Sereia were a species of slavers. (COMIC: Slaver's Song)
Biology
The Sereia resembled mermaids. The upper half of their body was humanoid whereas they had a long tail with fins instead of legs. Their skin colour could vary from white to green, blue or red. They had black eyes with no pupils and their mouths were full of razor sharp teeth. (COMIC: Slaver's Song)
Abilities
Individual Sereia had powerful voices they could use as a weapon. (COMIC: Slaver's Song)
