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SCORPIONS and The WORLD OF ARACHNIDS

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ISSN-1059-6518

The WORLD OF ARACHNIDS

 Dangerous to Humans

By Frank Hubbell, DO

Illustrations by T.B.R. Walsh

KINGDOM – Animalia

PHYLUM – Arthropoda

SUBPHYLUM – Chelicerada

CLASS – Arachnida

Arachnids:

They are joint-legged invertebrate animals.

They have eight legs, the front two may be modified into fangs or jaws.

There are over 100,000 named species.

There are 11 Orders of Arachnida:

Potentially dangerous to humans:

Araneae – spiders

Scorpiones – scorpions

Acari – ticks and mites

Harmless to humans:

Scolifugae – camel spiders, wind scorpions, sun spiders, solifuges

Opiliones – harvestmen (daddy longlegs)

Amblypygi – tailless whipscorpions and whip spiders

Palpigradi – micro whipscorpions

Pseudoscorpion – pseudoscorpion, bookscorpion, or false scorpion

Ricinulei – ricinuleids or hooded tick spiders

Schizomida – schizomids or shorttailled whipscorpion

Thelyphonida – whiptailed scorpion, vinegaroons, uropygids

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