Multiple choice

Which of the following is the smallest microscopic species of arthropods?

  1. Japanese spider crab

  2. Stygotantulus

  3. Tick

  4. Oribatid turtle-mite
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Stygotantulus stocki is a species of crustaceans living as an ectoparasite on harpacticoid copepods of the families Tisbidae and Canuellidae. It is the smallest arthropod in the world, with a length less than 0.1 millimetres (0.004 in). Thus, it can be seen only under a microscope.

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