By: Jaida Hughes, Destiny Wheat, and Llyac Ross
Phylum, Subphylum, Order, Class
There are 105 species in the class similar to scorpions but with a whiplike tail.
Number of Species in the Class
Body Structure / locomotion / External Structure such as segments
Scorpions walk on their eight legs much like a spider. This enables them to move quickly and smoothly.
The three major regions that form the body, from front to rear, are the prosoma, the mesosoma, and the metasoma. The mesosoma and the metasoma together form the abdomen, or opisthosoma. The prosoma has six segments, each with a pair of appendages.
Scorpions are arthropods, they have eight legs, two pedipalps, and a tail with a venom-injecting barb. Scorpions have two venom glands that produce venom used in hunting and self defense. Scorpions do not have bones instead they have an exoskeleton made of chitin, which is similar to the shell of a shrimp.