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The word scorpion originated in Middle English between 1175 and 1225 AD from Old French scorpion, [1] or from Italian scorpione, both derived from the Latin scorpio, equivalent to scorpius, [2] which is the romanization of the Greek σκορπίος – skorpíos, [3] with no native IE etymology (cfr.
It was attributed to the stylonurine eurypterid Hibbertopterus due to a matching size (the trackmaker was estimated to have been about 1.6 meters (5.2 ft) long) and inferred leg anatomy. It is the largest terrestrial trackway—measuring 6 meters (20 ft) long and averaging 95 centimeters (3.12 ft) in width—made by an arthropod found thus far.
English: Scorpion anatomy labelled on image of Cheloctonus jonesii.jpg 1 = Cephalothorax or Prosoma; 2 = Abdomen or Mesosoma; 3 = Tail or Metasoma; 4 = Claws or Pedipalps; 5 = Legs; 6 = Mouth parts or Chelicerae; 7 = pincers or Chelae; 8 = Moveable claw or Tarsus; 9 = Fixed claw or Manus; 10 = sting or Aculeus; 11 = Telson (anus in previous joint); 12 = Opening of book lungs
Scorpion anatomy: 1 = prosoma; 2 = mesosoma; 3 = metasoma The metasoma is clearly visible on this ant: it is the posterior section, including the petiole. The metasoma is the posterior part of the body, or tagma, of arthropods whose body is composed of three parts, the other two being the prosoma and the mesosoma. [1]
Opistophalmus glabrifrons (commonly known as the shiny burrow scorpion [1] [2] or the yellow-legged burrowing scorpion [3] [4]) is a large (adult size: 11–15 cm [5] [3]) species of burrowing scorpion found in Southern and Eastern Africa.
Amblypygi is an order of arachnids also known as whip-spiders or tailless whip-scorpions, not to be confused with whip-scorpions or vinegaroons that belong to the related order Thelyphonida. The name "amblypygid" means "blunt tail", a reference to a lack of the flagellum that is otherwise seen in whip-scorpions.
Scorpion anatomy: 1 = Prosoma; 2 = Mesosoma; 3 = Metasoma In scorpions , the mesosoma is composed of six segments and forms the first part of the abdomen , containing all of the major organs. The first segment contains the sexual organs as well as a pair of vestigial and modified appendages forming a structure called the genital operculum.
Green-shaded pedipalps in an illustrated dorsal view of a whip scorpion. Pedipalps (commonly shortened to palps or palpi) are the secondary pair of forward appendages among chelicerates – a group of arthropods including spiders, scorpions, horseshoe crabs, and sea spiders.