Solifugids look unique to me. However, I can imagine how observers might see them as supercharged versions of scorpions or spiders. Solifugids have eight legs as do scorpions and spiders ...

While this tailless whip scorpion may look like a creature from a nightmare ... Biology in the background The tailless whip scorpion, also called a whip spider, is neither a scorpion nor a spider but ...