Types / Species of Scorpions

Scorpions are part of the order Scorpiones and the class Arachnida. They are invertebrates that possess eight legs, and a two-segmented body composed of the cephalothorax and the abdomen. This is the classification of scorpions: Kingdom Animalia (Animals); Phylum: Arthropoda (Arthropods); Subphylum: Chelicerata; Class: Arachnida (Arachnids); and, Order: Scorpiones (Scorpions). Current records show that there are nineteen families, nine subfamilies, sixty-six genera, and one thousand five hundred twenty scorpion species known.

The largest of the scorpion families is the Buthidae with seven hundred and forty seven scorpion species in existence. These live mostly in tropical, subtropical and partly in temperate habitats, excepting New Zealand and Antarctica.

Seventy-nine scorpion species, belonging to Hemiscorpiidae, are known to inhabit all continents, particularly in tropical and subtropical habitats, with the exception of North America. Some of the world's largest scorpions belong to Scorpionidae family, which has a total of two hundred forty three scorpion species. Included in this family is the Pandinus Imperator - the emperor scorpion, one of the largest scorpion species known. Another giant is the Heterometrus swammerdami, which can reach lengths of twenty centimeters.

In general, scorpions are dangerous. All species have venom to kill or paralyze prey. It varies for humans since some experience nothing more than a kind of numbness due to the sting, while others can die due of the poisonous venom.

One scorpion that should be avoided at all costs is the Australian Androctonus australis. Also known as the fat-tailed scorpion, it is lethal to humans since it kills with quantity: injecting plenty of venom into its victim.

Some of the desert scorpion species, like the Desert Hairy Scorpion (Hadrurus hirsutus), have been adopted as pets. However, this is a fairly aggressive scorpion that emits painful stings.

Some of the Superstitioniids, which has no more than 10 known species, lack eyes and pigments and are known to inhabit subtropical Mexico.

Below are types of scorpions covered in greater detail in subsequent sections: