Arachnid
From Tardis Wiki, the free Doctor Who reference
Spiders were a type of arachnid found on Earth.
According to Nyssa, arachnids knew how to build webs instinctively. (AUDIO: Alien Heart)
Glomi IV was a planet home to six-armed arachnids. (PROSE: Death and Diplomacy)
Scorpions were arachnids. (PROSE: The Ruby's Curse)
