1) Animal order 2) Order pedipalpi 3) Order uropygi 4) Pedipalpi 1) Pedipalpi 
Uropygi Whip scorpian. The name uropygid means 'tail rump', referring to the whip-like flagellum on the end of the pygidium, a small plate made up of the last three segments of the abdominal exoskeleton. Whip scorpions have glands near the rear of their abdomen that can spray a combination of formic and acetic acid when they are bothered. The ace...