Uropygids, are commonly known as whip-scorpions and are robust nocturnal predators. There are approximately 108 described species.
Whip-scorpions also spray a noxious-smelling chemical mixture from anal glands, as a form of defence.
The name uropygid means 'tail rump', and is from the Greek ouropugion meaning 'tail' and puge meaning 'rump'
A pair of appendages found near the mouth of Arachnids. Often resembling legs, they may be used for locomotion, sensing, feeding and mating.