Smallest arthropod

- Who
- Stygotantulus stocki
- Where
- Not Applicable
- When
- 06 May 2014
The smallest arthropod of any kind (and also the smallest species of crustacean) is Stygotantulus stocki, a tantulocarid. This tiny creature measures only 0.094 mm long, and is an ectoparasite of harpacticoid copepods (which are themselves crustaceans).