5. Horseshoe crabs (Class Merostomata)

  6. Spiders (Class Arachnida)

  7. Scorpions (Class Arachnida)

  8. Ticks (Class Arachnida)

  9. Mites (Class Arachnida)

10. Pseudoscropions (Class Arachnida)

11. Harvestmen (Class Arachnida)

12. Isopods (Class Malacostraca)

13. Amphipods (Class Malacostraca)

14. Crabs (Class Malacostraca)

15. Barnacles (Class Maxillopoda)

16. Water fleas (Class Branchiopoda)

17. Brine shrimp (Class Branchiopoda)

18. Copepods (Class Maxillopoda)

19. Centipedes (Class Chilopoda)

20. Millipedes (Class Diplopoda)

21. Insects (Class Insecta)

22. Silverfish, etc. (Class Entognatha)