Scorpion

Pseudochactoidea
Buthoidea
Chaeriloidea
Chactoidea
Iuroidea
Scorpionoidea
See classification for families.

A scorpion is an arthropod with eight legs, belonging to the order Scorpiones in the class Arachnida. This class also contains the spiders, harvestmen, mites, and ticks. There are approximately 2000 species of scorpions. They are found widely distributed south of 49° N, except New Zealand and Antarctica.